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Advisory Circulars (ACs)

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Advisory Circulars (ACs) search results
Number Title Status Office Date
70/7460-1M Obstruction Marking and Lighting

This Advisory Circular (AC) describes the Federal Aviation Administration’s standards for marking and lighting structures to promote aviation safety.

Active AJV-P 2020-11-16
150/5210-5D Painting, Marking, and Lighting of Vehicles Used on an Airport

Provides guidance, specifications, and standards for painting, marking, and lighting of ground vehicles operating in the airport air operations area (AOA).

Active AAS-100 2010-04-01
45-2E Identification and Registration Marking

This AC describes an acceptable means, but not the only means, to comply with the requirements for identifying aircraft and aircraft engines with identification plates, identification marking requirements for propellers, and marking aircraft with nationality and registration marks.

Active AIR-100 2015-10-01
43-213A Parts Marking Identification - Including Change 1

This advisory circular (AC) provides information and guidance on developing procedures for part marking and part re-marking when performing maintenance, alteration, and fabrication, including the fabrication of owner- or operator-produced parts.

Active AFS-300 2013-05-14
20-88A Guidelines on the Marking of Aircraft

Provides revised guidelines on the marking of aircraft powerplant instruments and electronic displays (cathode ray tubes, etc.).

Active ANM-110 1985-09-30
25.812-1A Floor Proximity Emergency Escape Path Marking

Provides guidance material for use in demonstrating compliance with the provisions of Part 25 of the FAR requiring floor proximity emergency escape path markings.

Active ANM-114 1989-05-22
150/5345-53D Airport Lighting Equipment Certification Program

This AC describes the Airport Lighting Equipment Certification Program (ALECP). It provides information on how an organization can get Federal Aviation Administration (FAA) acceptance as a third-party certification body (third-party certifier) and how manufacturers may get equipment qualified under the program.

Active AAS-100 2012-09-26
150/5345-56B Specification for L-890 Airport Lighting Control and Monitoring System (ALCMS)

Specifies the minimum requirements for an Airport Lighting Control and Monitoring System (ALCMS). The ALCMS simplifies the control and monitoring of lighted visual aids and enhances airport safety.

Active AAS-100 2011-09-29
150/5345-43J Specification for Obstruction Lighting Equipment

This AC contains the FAA specification for obstruction lighting equipment.

Active AAS-100 2019-03-11
20-116 Marking Aircraft Fuel Filler Openings with Color Coded Decals

Discusses the conditions under which color coded decals may be used to comply with the requirements in FAR Parts 23, 25, 27, and 29 for marking fuel filler openings.

Active ACE-100 1982-09-17
20-56A Marking of TSO-C72b Individual Flotation Devices

Outlines acceptable methods for marking individual flotation devices which also serve as seat cushions

Active AIR-120 1975-04-01
25.812-2 Floor Proximity Emergency Escape Path Marking Systems Incorporating Photoluminescent Elements

Provides guidance for use in demonstrating compliance with the provisions of part 25 of the Federal Aviation Regulations (FAR) regarding floor proximity emergency escape path marking systems (FPEEPMS), which incorporate photo luminescent elements.

Active ANM-114 1997-07-24
150/5345-54B Specification for L-884, Power and Control Unit for Land and Hold Short Lighting Systems

Contains the FAA standards for power and control units for land and hold short lighting systems.

Active AAS-100 2009-09-30
150/5345-47C Specification for Series to Series Isolation Transformers for Airport Lighting Systems

Contains the Federal Aviation Administration (FAA) specifications for series to series isolation transformers for use in airport lighting systems.

Active AAS-100 2011-07-22
150/5345-7F Specification for L-824 Underground Electrical Cable for Airport Lighting Circuits

This AC provides specifications for L-824 underground electrical cable for airport lighting circuits.

Active AAS-100 2013-08-19
150/5345-3G Specification for L-821, Panels for the Control of Airport Lighting

Provides the specified manufacturing requirements for panels used for remote control of airport lighting and auxiliary systems.

Active AAS-100 2010-09-29
150/5345-13B Specification for L-841 Auxiliary Relay Cabinet Assembly for Pilot Control of Airport Lighting Circuits

Contains the specification requirements for a relay cabinet used to control airfield lighting circuits. The L-841 consists of an enclosure containing a direct current (DC) power supply, control circuit protection and 20 pilot relays.

Active AAS-100 2007-09-20
45-4 Identification, marking, and placarding of aircraft issued special airworthiness certificates in the light-sport category (S-LSA) and aircraft issued experimental certificates for the purpose of operating light-sport aircraft (E-LSA)

This AC describes an acceptable means, but not the only means, to comply with the requirements for identifying S-LSA and E-LSA with identification (ID) plates, displaying nationality and registration marks, and displaying placards.

Active AIR-200 2012-11-16
150/5345-10H Specification for Constant Current Regulators and Regulator Monitors

Contains a specification for constant current regulators (CCR) and a monitor for use with airport lighting circuits.

See also Engineering Brief 67, Light Sources Other than Incandescent and Xenon for Airport and Obstruction Lighting Fixtures.

Active AAS-100 2014-11-05
150/5345-50B Specification for Portable Runway and Taxiway Lights

Contains the FAA standards for portable runway and taxiway lights and runway end identifier lights for temporary use to permit continued aircraft operations while all or part of a runway lighting system is inoperative.

Active AAS-100 2007-09-20
150/5345-46E Specification for Runway and Taxiway Light Fixtures

Contains FAA specifications for light fixtures to be used on airport runways and taxiways. See also--

Active AAS-100 2016-03-02
25-16 Electrical Fault and Fire Prevention and Protection

This advisory circular (AC) provides information on electrically caused faults, overheat, smoke, and fire in transport category airplanes. Acceptable means are provided to minimize the potential for these conditions to occur, and to minimize or contain their effects when they do occur.

Active ANM-111 1991-04-05
61-65H Certification: Pilots and Flight and Ground Instructors

This advisory circular (AC) provides guidance for pilot and instructor applicants, pilots, flight instructors, ground instructors, and examiners on the certification standards, knowledge test procedures, and other requirements in Title 14 of the Code of Federal Regulations (14 CFR) part 61.

Active AFS-800 2018-08-27
150/5345-26E FAA Specification for L-823 Plug and Receptacle, Cable Connectors

This AC contains the specification for plug and receptacle (cable connectors) used with underground power cables, isolation transformer leads, and light fixture leads for airport lighting systems.

Active AAS-100 2021-12-16
25.735-1 Brakes and Braking Systems Certification Tests and Analysis

Describes an acceptable means for obtaining FAA airworthiness approval concerning new or revised requirements for braking systems, and associated test conditions for braking systems, installed in transport category airplanes.

Active ANM-100 2002-04-10
25.775-1 Windows and Windshields

Sets forth an acceptable means, but not the only means, of demonstrating compliance with the provisions of Title 14, Code of Federal Regulations (14 CFR) part 25 pertaining to the certification requirements for windshields, windows, and mounting structure. Guidance information is provided for showing compliance with § 25.775(d), relating to structural design of windshields and windows for airplanes with pressurized cabins.

Active ANM-110 2003-01-17
150/5220-18A Buildings for Storage and Maintenance of Airport Snow and Ice Control Equipment and Materials

Provides guidance for the site selection and design of buildings used to store and maintain airport snow and ice control equipment, store approved materials, and provide personnel areas required to support the requirements under the airport operator’s winter storm management plan.

Active AAS-100 2007-09-14
120-48A Communication and Coordination Between Flightcrew Members and Flight Attendants

This AC provides updated guidance for flight and cabin crews regarding communications during emergency and unusual situations.

Active AFS-200 2020-01-27
150/5345-39E Specification for L-853, Runway and Taxiway Retroreflective Markers

This AC contains the FAA's standards for retroreflective markers for airport runways and taxiways.

Effective six months after the issue date of this AC, only equipment that is qualified with in this AC will be listed according to the requirements in AC 150/5345-53, Airport Lighting Equipment Certification Program.

Active AAS-100 2021-10-12
43-214A Repairs and Alterations to Composite and Bonded Aircraft Structure

-registered airplanes), 133, 135, 137, and 145 regarding procedures and facilities for repairs and alterations of structures consisting of adhesively-bonded (including metal bond) and fiber-reinforced materials (e.g., carbon, aramid, and glass-reinforced polymeric materials mentioned in the current edition of AC 20-107, Composite Aircraft Structure).

Active AFS-300 2016-07-23
150/5060-5 Airport Capacity And Delay

Explains how to compute airport capacity and aircraft delay for airport planning and design. Consolidated file contains Changes 1 and 2.

Active APP-400 1983-09-23
150/5360-12F Airport Signing and Graphics

This AC provides guidance on airport terminal and landside wayfinding, signing, and graphics. It focuses on four areas of the airport: roadways, parking, curbside and ground transportation, and terminal.

Active AAS-100 2013-09-26
43-6D Altitude Reporting Equipment and Transponder System Maintenance and Inspection Practices

Like all advisory material, this AC is not in itself mandatory and does not constitute a regulation. It provides a means, but not the only means, of testing at the time of original installation, after performing repairs, or during scheduled recertification.

Active AFS-300 2017-02-15
25.1309-1A System Design and Analysis

Describes various acceptable means for showing compliance with the requirements of section 25.1309(b), (c), and (d) of the Federal Aviation Regulations (FAR). These means are intended to provide guidance for the experience engineering and operational judgment that must form the basis for compliance findings.

Active ANM-112 1988-06-21
25.783-1A Fuselage Doors and Hatches

Guidance information is provided for showing compliance with structural and functional safety standards for doors and their operating systems.

Active ANM-115 2005-04-25
25.1353-1A Electrical equipment and installations Active ANM-100 2007-10-22
20-66B Propeller Vibration and Fatigue

This evaluation uses fatigue and structural data obtained in accordance with 14 CFR part 35.

Active ANE-111 2011-03-24
120-114 Pilot Training and Checking (14 CFR Part 121 Subparts N and O, including Appendices E and F)

This advisory circular (AC) provides information regarding pilot training and checking under Title 14 of the Code of Federal Regulations (14 CFR) part 121 subparts N and O, including part 121 appendices E and F.

Active AFS-200 2016-09-29
120-79A Developing and Implementing an Air Carrier Continuing Analysis and Surveillance System

This advisory circular (AC) provides information for developing and implementing a Continuing Analysis and Surveillance System (CASS).

Active AFS-300 2010-09-07
145-9A Guide for Developing and Evaluating Repair Station and Quality Control Manuals

This advisory circular (AC) provides informational material for all repair station certificate holders and/or applicants under Title 14 of the Code of Federal Regulations (14 CFR) part 145 to develop and evaluate a Repair Station Manual (RSM) and Quality Control Manual (QCM).

Active AFS-300 2017-10-06
25-9A Smoke Detection, Penetration, and Evacuation Tests and Related Flight Manual Emergency Procedures

Provides guidelines for the conduct of certification tests relating to smoke detection, penetration, and evacuation and to evaluate related Airplane Flight Manual (AFM) procedures.

Active ANM-111 1994-01-06
23-17C Systems and Equipment Guide for Certification of Part 23 Airplanes and Airships

This advisory circular (AC) sets forth an acceptable means of showing compliance with Title 14 Code of Federal Regulations (14 CFR), part 23, for the certification of systems and equipment in normal, utility, acrobatic, and commuter category airplanes and airships.

Active ACE-100 2011-11-17
91-32B Safety in and Around Helicopters

This Advisory Circular (AC) provides safety guidelines for persons associated with helicopter operations and suggests ways to avoid hazards and reduce the risk of accidents.

Active AFS-820 1997-02-18
33.91-1 Engine System and Component Tests

This advisory circular (AC) provides guidance and acceptable methods, but not the only methods, that may be used to demonstrate compliance with the engine component and systems test requirements under Title 14 of the Code of Federal Regulations (14 CFR), part 33, specifically § 33.91, paragraphs (a) and (b).

Active ANE-111 2010-12-09
120-49A Parts 121 and 135 Certification

This advisory circular (AC) provides guidance and basic information on the certification processes for a Title 14 of the Code of Federal Regulations (14 CFR) parts 121 and 135 Air Carrier or Operating Certificate.

Active AFS-200 2018-07-05
91-44A Operational and Maintenance Practices for Emergency Locator Transmitters and Receivers - Change 1

Combines and updates material in several Advisory Circulars on the subject of emergency locator transmitters (ELT) receivers for airborne service.

Active AFS-300 1980-12-12
61-98D Currency Requirements and Guidance for the Flight Review and Instrument Proficiency Check

This advisory circular (AC) provides information for certificated pilots and flight instructors to use in complying with the flight review required by Title 14 of the Code of Federal Regulations (14 CFR) part 61, § 61.56 and the recent flight experience requirements of § 61.57.

Active AFS-800 2018-04-30
150/5210-23A ARFF Vehicle and High Reach Extendable Turret (HRET) Operation, Training and Qualifications

This AC contains the FAA standards and recommendations for the training of airport firefighting and rescue personnel in the proper operation and tactical use of ARFF vehicles and ARFF Vehicles equipped with HRETs.

Active AAS-310 2023-05-25
20-147A Turbojet, Turboprop, Turboshaft, and Turbofan Engine Induction System Icing and Ice Ingestion

This AC discusses the icing environments depicted in appendices C and O of part 25, appendix C of part 29, and appendix D of part 33.

Active ANE-100 2014-10-22
25.795-3 Flightdeck Protection (Smoke and Fumes)

The means of compliance described in this document provides guidance to supplement the engineering and operational judgment that must form the basis of any compliance findings relative to penetration into the flightdeck of smoke, fumes, and noxious gases generated by explosions or fires elsewhere on the airplane.

Active ANM-100 2008-10-24
00-34A Aircraft Gound Handling and Servicing

This advisory circular contains in~ormation and guidance for the servicing and ground handling of aircraft.

Active AFS-340 1974-07-29
25.1365-1 Electrical Appliances, Motors, and Transformers

This advisory circular (AC) provides guidance for demonstrating compliance with the transport category airplane certification requirements of § 25.1365 Electrical appliances, motors, and transformers.

Active ANM-100 2007-11-27
150/5300-19 Airport Data and Information Program

This AC provides general guidance and information for airport owners and operators in the collection and management of data describing the physical infrastructure, characteristics, and services of their airport.

Active AAS-100 2015-09-30
35.37-1B Propeller Fatigue Limits and Evaluation

This advisory circular (AC) provides guidance and describes methods, but not the only methods, for demonstrating compliance with § 35.37, Propeller fatigue limits and evaluation, of Title 14 of the Code of Federal Regulations (14 CFR).

Active ANE-111 2011-03-24
120-27F Aircraft Weight and Balance Control

This AC provides operators with guidance on how to develop and receive approval for a Weight and Balance (W&B) control program for aircraft and operated under Title 14 of the Code of Federal Regulations (14 CFR) part 91 subpart K (part 91K) , and parts 121, 125, and 135.

Active AFS-200 2019-05-06
150/5320-6G Airport Pavement Design and Evaluation

This AC provides guidance to the public on the design and evaluation of pavements used by aircraft at civil airports. For reporting of pavement strength, see AC 150/5335-5, Standardized Method of Reporting Airport Pavement Strength – PCR.

Active AAS-100 2021-06-07
33.78-1 Turbine Engine Power-Loss and Instability in Extreme Conditions of Rain and Hail

Provides guidance and acceptable methods, but not the only methods, that may be used to demonstrate compliance with the requirements contained under Title 14 of the Code of Federal Regulations (14 CFR), part 33, sections 33.78(a)(2) and 33.78(c).

Active ANE-110 2000-02-08
33.7-1 Ratings and Operating Limitations for Turbine Engines (Sections 33.7 and 33.8)

This advisory circular (AC) provides information and guidance on turbine engine compliance under part 33 of Title 14 of the Code of Federal Regulations (14 CFR), specifically §§ 33.7, Engine ratings and operating limitations, and 33.8, Selection of engine power and thrust ratings.

Active ANE-111 2010-06-28
61-136B FAA Approval of Aviation Training Devices and Their Use for Training and Experience

This AC applies only to the evaluation and use of BATDs and AATDs. This notice does not apply to full flight simulators (FFS) and flight training devices (FTD) that are regulated under 14 CFR part 60.

Active AFS-800 2018-09-12
20-65A U.S. AIRWORTHINESS CERTIFICATES AND AUTHORIZATIONS FOR OPERATION OF DOMESTIC AND FOREIGN AIRCRAFT

Provides general information and guidance concerning issuance of airworthiness certificates for U.S. registered aircraft, and issuance of special flight authorizations for operation in the United States of foreign aircraft not having standard airworthiness certificates issued by the country of registry.

Active AIR-200 2004-07-08
20-74 Aircraft Position and Anticollision Light Measurements

Contains useful information concerning measurements for intensity, covering, and color of aircraft position and anti-collision lights.

Active AIR-120 1971-07-29
150/5210-13C Airport Water Rescue Plans and Equipment

Provides guidance to assist airport operators in preparing for water rescue operations.

Active AAS-300 2010-09-29
117-2 Fatigue Education and Awareness Training Program

This advisory circular (AC) presents guidelines for developing and implementing a Fatigue Education and Awareness Training Program.

Active AFS-220 2012-10-11
150/5220-20A Airport Snow and Ice Control Equipment

This advisory circular provides guidance to assist airport operators in the procurement of snow and ice control equipment for airport use.

Active AAS-100 2014-09-24
150/5000-17 Critical Aircraft and Regular Use Determination

This advisory circular (AC) defines the term Critical Aircraft and provides guidance on the use of Critical Aircraft in facility planning and design studies, and related FAA decision making, for federally obligated airports.

Active APP-400 2017-06-20
150/5345-44K Specification for Runway and Taxiway Signs

This AC contains the FAA specifications for unlighted and lighted signs to be used on taxiways and runways.

Active AAS-100 2015-10-08
00-65A Towbar and Towbarless Movement of Aircraft

This AC provides guidance for towbar and towbarless movement of aircraft and applies to all operators under Title 14 of the Code of Federal Regulations (14 CFR) parts 91, 91 subpart K (part 91K), 121, 125, 129, and 135.

Active AFS-300 2023-08-11
00-1.1B Public Aircraft Operations—Manned and Unmanned

§§ 40102(a)(41) and 40125 (the statute). Additionally, this AC contains Federal Aviation Administration (FAA) policy pertaining to civil aircraft operators that provide contract support to government entities.

Active AFS-800 2018-09-21
21-29D Detecting and Reporting Suspected Unapproved Parts

This advisory circular (AC) provides guidance to the aviation community for detecting suspected unapproved parts (SUP) and reporting them to the Federal Aviation Administration (FAA). Appendix A contains FAA Form 8120-11, Suspected Unapproved Parts Report, (with instructions) which serves as a standardized means of reporting.

Active AIR-600 2016-07-12
20-184 Guidance on Testing and Installation of Rechargeable Lithium Battery and Battery Systems on Aircraft

The guidance in this AC is intended for manufacturers, installers, maintenance personnel, and users of installed rechargeable lithium batteries and battery systems on aircraft.

Active AIR-133 2015-10-15
90-105A Approval Guidance for RNP Operations and Barometric Vertical Navigation in the U.S. National Airspace System and in Oceanic and Remote Continental Airspace

This advisory circular (AC) provides guidance for operators to conduct Required Navigation Performance (RNP) operations in the United States, in oceanic and remote continental airspace, and in foreign countries which adopt International Civil Aviation Organization (ICAO) standards for RNP operations.

Active AFS-400 2016-03-07
25.1435-1 Hydraulic System Certification Tests and Analysis

This advisory circular (AC) provides guidance material for use as an acceptable means, but not the only means, of demonstrating compliance with the airworthiness standards for transport category airplanes that contain hydraulic system requirements. It is not mandatory and does not constitute a regulation.

Active ANM-110 2001-05-21
65-2D Airframe and Powerplant Mechanics Certification Guide Active AFS-300 1987-01-30
120-60B Ground Deicing and Anti-icing Program

Provides one means, but not the only means, for obtaining approval of a Ground Deicing and Anti-icing Program, and for ensuring compliance with FAR Section 121.629.

Active AFS-220 2004-12-20
120-42B Extended Operations (ETOPS and Polar Operations)

States an acceptable means but not the only means for obtaining approval under FAR Section 121.161 for two-engine airplanes to operate over a route that contains a point farther than one hour flying time at the normal one-engine inoperative cruise speed (in still air) from an adequate airport.

Active AFS-220 2008-06-13
20-161 Aircraft Onboard Weight and Balance Systems

This Advisory Circular (AC)gives manufacturers and installers an acceptable means of compliance to meet the installation, operation, and airworthiness requirements for aircraft onboard weight and balance systems (OBWBS)

Active AIR-130 2008-04-11
150/5210-7D Aircraft Rescue and Fire Fighting Communications

Provides guidance to assist airport operators in preparing for Aircraft Rescue and Fire Fighting (ARFF) communications.

Active AAS-300 2008-04-14
120-84 Aging Aircraft Inspections and Records Reviews

This advisory circular (AC) provides guidance pertaining to aging aircraft inspections and records reviews accomplished to satisfy the requirements of the Aging Aircraft Safety Final Rule.

Active AFS-309 2004-10-22
150/5345-12F Specification for Airport and Heliport Beacons

Contains equipment specifications for light beacons that are used to locate and identify civil airports, military airports, seaplane bases, and heliports.

Active AAS-100 2010-09-24
20-174 Development of Civil Aircraft and Systems

This includes validation of requirements and verification of the design implementation for certification and process assurance.

Active AIR-120 2011-09-30
25.857-1 Class B and F Cargo Compartments

This advisory circular (AC) provides guidance concerning compliance with the airworthiness standards for transport category airplanes pertaining to Class B and Class F cargo compartments.

Active ANM-112 2016-02-03
91-70C Oceanic and Remote Continental Airspace Operations

The Federal Aviation Administration (FAA) (“we”) developed this AC to provide general information and guidance for certificated and General Aviation (GA) operators (“you”) planning flights in oceanic and remote continental airspace.

Active AFS-400 2023-10-04
450.169-1 Launch and Reentry Collision Avoidance Analysis

This AC provides guidance to launch or reentry operators on how to complete the launch and reentry collision avoidance analysis in accordance with 14 CFR § 450.169.

Active AST-1 2023-08-10
21-13 Standard Airworthiness Certification of Surplus Military Aircraft and Aircraft Built from Spare and Surplus Parts Active AIR-200 1973-04-05
43.13-1B Acceptable Methods, Techniques, and Practices - Aircraft Inspection and Repair [Large AC. This includes Change 1.]

This advisory circular (AC) contains methods, techniques, and practices acceptable to the Administrator for the inspection and repair of nonpressurized areas of civil aircraft, only when there are no manufacturer repair or maintenance instructions.

Active AFS-350 1998-09-08
20-142 Eligibility and Evaluation of U.S. Military Surplus Flight Safety Aircraft Parts, Engines, and Propellers

This advisory circular (AC) provides information and guidance for use in evaluating and determining the eligibility of U.S. military surplus flight safety critical aircraft parts (FSCAP), engines, and propellers for installation on Federal Aviation Administration (FAA) type-certificated products.

Active AFS-300 2000-02-25
120-125 Development and Use of an Operator's MEL, NEF Program, and CDL for Operations Under 14 CFR Parts 91K, 121, 125, and 135

This AC provides clarity on minimum equipment list (MEL), nonessential equipment and furnishings (NEF) program, Configuration Deviation List (CDL), and certain Federal Aviation Administration (FAA) requirements regarding the operation of aircraft with inoperative instruments and equipment.

Active AFS-200 2023-11-01
20-131A Airworthiness Approval of Traffic Alert and Collision Avoidance Systems (TCAS II) and Mode S Transponders

Provides guidance material for the airworthiness and operational approval of Traffic Alert and Collision Avoidance Systems (TCAS II) and Mode S transponders.

Active ANM-110 1993-03-29
93-3 Lengthy Tarmac Delays and Associated Airline/Airport Contingency Plans and Related Air Traffic Control Communications

This AC describes the communication process between a pilot-in-command of a TARMAC delayed aircraft and local air traffic control (ATC). In addition, air carrier (Air Carrier Operations Center/Dispatch) communications related to TARMAC delayed aircraft with the Air Traffic Control System Command Center (ATCSCC) are addressed.

Active AJR-1 2010-03-23
20-135 Powerplant Installation and Propulsion System Component Fire Protection Test Methods, Standards and Criteria with change 1

Included in this document are methods for fire testing of materials and components used in the propulsion engines and APU installations, and in areas adjacent to designated fire zones, as well as the rationale for these methods.

Active AIR-600 1990-02-06
20-169 Guidance for Certification of Military and Special Mission Modifications and Equipment for Commercial Derivative Aircraft (CDA)

CDA are aircraft that have been modified with specialized equipment to perform military and other non-civil missions. CDA are operated-by, or under the operational control of, governmental entities.

Active AIR-100 2010-09-30
20-133 Cockpit Noise and Speech Interference Between Crewmember

Provides information about the relationship between flight crew members cockpit voice communication and cockpit noise levels. Guidance, on speech interference levels, noise measurement and measurement systems, and methods to improve cockpit communication, is provided for those manufacturers, owners or operators who believe cockpit noise may be a problem on their aircraft.

Active AIR-130 1989-03-22
25-13 Reduced and Derated Takeoff Thrust (Power) Procedures

This advisory circular (AC) provides guidance for the certification and use of reduced thrust (power) for takeoff and derated takeoff thrust (power) on turbine powered transport category airplanes.

Active ANM-112 1988-05-04
25.491-1 Taxi, Takeoff and Landing Roll Design Loads

Sets forth acceptable methods of compliance with provisions of Part 25 of the FAR dealing with the certification requirements for taxi, takeoff, and landing roll design loads. Guidance information is provided for showing compliance with section 25.491 of the FAR relating to structural design for airplane operation on paved runways and taxiways normally used in commercial operations.

Active ANM-110 2000-10-20
25.899-1 Electrical bonding and protection against static electricity

This advisory circular (AC) provides guidance for demonstrating compliance with the transport category airplane certification requirements of § 25.899 Electrical bonding and protection against static electricity

Active ANM-100 2007-10-22
150/5210-15A Aircraft Rescue and Firefighting Station Building Design

Contains information, references and guidelines for construction of Aircraft Rescue and Fire Fighting (ARFF) station building design.

Active AAS-100 2008-09-10
150/5020-1 Noise Control and Compatibility Planning for Airports

Provides general guidance for noise control and compatibility planning for airports as well as specific guidance for preparation of airport noise exposure maps and airport noise compatibility programs by airport operators for submission under Title 14, Code of Federal Regulations, Part 150, and the Aviation Safety and Noise Abatement Act of 1979.

Active APP-400 1983-08-05
120-93 Damage Tolerance Inspections for Repairs and Alterations

This AC will give guidance on developing compliance documents, schedules and plans that will assist in developing and incorporating damage tolerance inspections into maintenance programs of certain transport category airplanes with respect to repairs and alterations.

Active ANM-100 2007-11-20
43.13-2B Acceptable Methods, Techniques, and Practices - Aircraft Alterations Active AFS-300 2008-03-03
20-27G Certification and Operation of Amateur-Built Aircraft

This Advisory Circular (AC) provides information about Title 14, Code of Federal Regulations (14 CFR) part 21, Certification Procedures for Products and Parts, § 21.191(g) for the purpose of operating amateur-built aircraft.

Active AIR-200 2009-09-30
120-83 Flight Deck Observer Seat and Associated Equipment

Provides guidance for 14 CFR parts 121, 125, and 135 certificate holders for obtaining an FAA finding regarding the operational safety/suitability of the Flight Deck Observer Seat and Associated Equipment.

Active AFS-220 2004-06-03
150/5320-17A Airfield Pavement Surface Evaluation and Rating Manuals

Appendices A and B of this AC include the Asphalt and Concrete Airfield Pavement Surface Evaluation and Rating Manuals (PASER Manuals).

Active AAS-100 2014-09-10
33.74/92-1B Turbine Engine Continued Rotation and Rotor Locking

This advisory circular (AC) provides guidance to demonstrate compliance with Title 14 of the Code of Federal Regulations (14 CFR), Section 33.74, Continued Rotation and Section 33.92, Rotor Locking Tests.

Active ANE-111 2016-06-23
450.167-1 Tracking for Launch and Reentry Safety Analysis

This AC provides guidance and an acceptable means of complying with the requirement to track the flight of a launch or reentry vehicle under 14 CFR § 450.167 using onboard hardware, launch site services, or other means.

Active AST-1 2022-09-29
121-24D Passenger Safety Information Briefing and Briefing Cards

This AC provides updated information regarding the items that are required or recommended content in oral passenger safety briefings and on safety information briefing cards. This AC provides specific information about air carrier operations conducted under Title 14 of the Code of Federal Regulations (14 CFR) parts 121 and 135.

Active AFS-200 2019-03-05
450.45-1 Launch and Reentry of Space Nuclear Systems

In accordance with § 450.45(e)(6), the FAA will evaluate the launch or reentry of any radionuclide on a case-by-case basis and issue an approval if the FAA finds that the launch or reentry is consistent with public health and safety, safety of property, and national security and foreign policy interests of the United States.

Active AST-1 2023-10-20
91-50 Importance of Transponder Operation and Altitude Reporting

Provides information and guidance concerning the importance of transponder operation and altitude reporting in the National Airspace System.

Active AFS-820 1977-08-24
20-30B Aircraft Position Light and Anticollision Light Installations

Sets forth acceptable means, but not the only means, of showing compliance with the Federal Aviation Regulations (FAR) applicable to installed position lights and anti-collision lights.

Active AIR-120 1981-07-20
120-106A Scope and Recommended Content for a Contractual Agreement Between an Air Carrier and a Maintenance Provider

This revision of the advisory circular (AC) introduces new rulemaking regarding aircarrier contract maintenance programs and air carrier manual content pertaining to contract maintenance requirements and contract maintenance provider (MP) responsibilities required by Title 14 of the Code of Federal Regulations (14 CFR) part 121, §§ 121.368 and 121.369(b)(10), and part 135, §§ 135.426 and 135.427(b)(10).

Active AFS-300 2016-01-04
103-6 Ultralight Vehicle Operations-Airports, ATC, and Weather

Provides guidance for the operation of ultralight vehicles in the U.S. Information includes airport and flight park operations, how to work with ATC, and the availability of weather services.

Active AFS-820 1983-06-23
121-31 Flight Crew Sleeping Quarters and Rest Facilities

Provides methods acceptable to the FAA Administrator for FAR Part 121 certificate holders who conduct flag and supplemental operations to obtain an FAA finding regarding the adequacy of onboard sleeping quarters for compliance with FAR Sections 121.485(a) and 121.523(b).

Active AFS-220 1994-09-30
25.613-1 Material Strength Properties and Material Design Values

This advisory circular (AC) provides guidance for demonstrating compliance with the airworthiness standards that specify the requirements for material strength properties and material design values. This guidance is applicable to transport category airplanes for which a new, amended, or supplemental type certificate is requested.

Active ANM-115 2003-08-06
91-26 Maintenance and Handling of Airdriven Gyroscopic Instruments

Advises operators of general aviation aircraft of the need for proper maintenance of air-driven gyroscopic instruments and associated air filters.

Active AFS-310 1969-07-02
26-1 Part 26, Continued airworthiness and Safety Improvements

This AC provides generic guidance that is applicable to the safety initiatives in part 26 that may be issued (i.e., Enhanced Airworthiness Program for Airplane Systems, Reduction of Fuel Tank Flammability in Transport Category Airplanes, Aging Airplane Safety, and Widespread Fatigue Damage). This AC provides generic guidance on the roles and responsibilities of type certificate and supplemental type certificate holders, manufacturers, owners, and operators.

Active ANM-100 2007-12-03
25.571-1D Damage Tolerance and Fatigue Evaluation of Structure

This advisory circular (AC) provides guidanc~ for compliance with the provisions of Title 14, Code of Federal Regulations (14 CFR) part 25, pertaining to the requirements for damage-tolerance and fatigue evaluation oftransport category aircraft structurce, including evaluation of widespread fatigue dam, age (VlFD) and establishing a limit of validity of the engineering data that supports the structural-maintenance program (hereafter referred to as the LOV).

Active ANM-115 2011-01-13
21-50 Installation of TSOA Articles and LODA Appliances

This AC is not mandatory and is not a regulation. This AC describes an acceptable means, but not the only means, to comply with the applicable requirements.

Active AIR-110 2011-02-11
25-25A Performance and Handling Characteristics in Icing Conditions

This advisory circular describes an acceptable means of showing compliance with the airplane performance and handling characteristics certification requirements for flight in the icing conditions defined in Appendices C and 0 of Title 14, Code of Federal Regulations part 25.

Active ANM-110 2014-10-27
20-179 Certification Data Retention Agreements and Government Records

AC 21-48 describes an acceptable means for using electronic modeling systems in design, manufacturing, installation, and inspection processes. Although in that AC we define an “electronic modeling system” as a three-dimensional (3-D) modeling system, we encourage you to use the guidance provided because it identifies the criteria for using electronic type design data and includes requirements for how to access and present the data.

Active AIR-110 2013-06-10
91-63D Temporary Flight Restrictions (TFR) and Flight Limitations

This advisory circular (AC): (1) explains and defines the different flight limitations and Temporary Flight Restrictions (TFRs); (2) describes conditions under which the Federal Aviation Administration (FAA) may establish a flight limitation or TFR area; (3) explains which FAA offices are authorized to issue flight limitations or TFRs; (4) lists the agencies/offices from which the FAA will accept requests to establish a flight limitation or TFR area; and (5) provides an appendix for each type of flight limitation or restriction.

Active AJV-1 2015-12-09
20-136B Aircraft Electrical and Electronic System Lightning Protection

This advisory circular (AC) provides you with information and guidance on how you can protect aircraft electrical and electronic systems from the effects of lightning.

Active AIR-130 2011-09-07
23-27 Parts and Materials Substitution for Vintage Aircraft

The material in this AC is neither mandatory nor regulatory in nature and does not constitute a regulation. You may follow an alternate FAA-approved method.

Active ACE-100 2009-05-18
120-78A Electronic Signatures, Electronic Recordkeeping, and Electronic Manuals

This advisory circular (AC), as any AC, is not mandatory and does not constitute a regulation; rather, it provides standards and guidance for electronic signatures, electronic recordkeeping, and electronic manual systems.

Active AFS-300 2016-06-22
36-4D Noise Standards: Aircraft Type and Airworthiness Certification

It provides (1) guidance to certificating authorities and applicants regarding the intended meaning and stringency of the Standards in part 36 as amended through October 4, 2017 (Amendment 36-31), and (2) the specific procedures that are deemed acceptable in demonstrating compliance with those Standards.

Active AEE-100 2017-10-12
120-111 Upset Prevention and Recovery Training - with Change

This advisory circular (AC) describes the recommended training for airplane Upset Prevention and Recovery Training (UPRT). The goal of this AC is to provide recommended practices and guidance for academic and flight simulation training device (FSTD) training for pilots to prevent developing upset conditions and ensure correct recovery responses to upsets.

Active AFS-200 2015-04-14
91-79B Aircraft Landing Performance and Runway Excursion Mitigation

This AC provides ways to identify, understand, and manage the risks associated with the landing phase of flight. It describes braking action reports and the Runway Condition Assessment Matrix (RCAM), discusses the hazards associated with runway overruns and excursions, reviews the requirements for predeparture flight planning, and provides procedures for completing a time of arrival (TOA) landing distance assessment.

Active AFS-200,800 2023-08-28
33-8 Guidance for Parts Manufacturer Approval of Turbine Engine and Auxiliary Power Unit Parts under Test and Computation

This advisory circular (AC) provides guidance for developing substantiation data to support the design approval of critical and complex turbine engine and auxiliary power unit (APU) parts produced under parts manufacturer approval (PMA).

Active ANE-111 2009-08-19
21-16G RTCA Document DO-160 versions D, E and F, “Environmental Conditions and Test Procedures for Airborne Equipment”

(RTCA/DO)-160 versions D, E, F, and G, Environmental Conditions and Test Procedures for Airborne Equipment, dated July 27, 1997, December 20, 2005, December 6, 2007, and December 8, 2010, respectively, as containing acceptable environmental qualifications to show compliance with certain airworthiness requirements.

Active AIR-100 2011-06-22
20-170 Integrated Modular Avionics Development. Verification, Integration and Approval using RTCA/DO-297 and Technical Standard Order C153

We cite RTCA, Inc. document RTCA/DO-297, Integrated Modular Avionics (IMA) Development Guidance and Certification Considerations, dated November 8, 2005 and supplement it with this text.

Active AIR-120 2010-10-28
150/5300-16B General Guidance and Specifications for Aeronautical Surveys: Establishment of Geodetic Control and Submission to the National Geodetic Survey

It also describes how to submit the information to the National Geodetic Survey (NGS) for approval and inclusion in the National Spatial Reference System (NSRS) in support of aeronautical information surveys.

Active AAS-100 2019-07-08
150/5380-9 Guidelines and Procedures for Measuring Airfield Pavement Roughness

Provides guidelines and procedures for measuring and evaluating runway roughness as identified by surface profile data of rigid and flexible airport pavements.

Active AAS-100 2009-09-30
150/5220-17B Aircraft Rescue and Fire Fighting (ARFF) Training Facilities

Provides guidance on the design, construction, and operation of aircraft rescue and fire fighting (ARFF) training facilities.

Active AAS-100 2010-09-30
20-153B Acceptance of Aeronautical Data Processes and Associated Databases

The term “must” indicates mandatory requirements when following the guidance in this AC. The terms “should” and “recommend” indicate recommended guidance, but are not required for meeting the objectives of this AC.

Active AIR-130 2016-04-19
120-109A Stall Prevention and Recovery Training with Change 1

This advisory circular (AC) provides guidance for training, testing, and checking pilots to ensure correct responses to impending and full stalls.

Active AFS-200 2015-11-24
150/5340-30J Design and Installation Details for Airport Visual Aids

This AC provides guidance and recommendations on the installation of airport visual aids. See the Principal Changes paragraph for a list of major changes to the document since the last version.

Active AAS-100 2018-02-12
150/5200-30D Airport Field Condition Assessments and Winter Operations Safety

This AC provides guidance to assist airport operators in developing a snow and ice control plan, assessing and reporting airport conditions through the utilization of the Runway Condition Assessment Matrix (RCAM), and establishing snow removal and control procedures.

Active AAS-300 2020-10-29
120-26N Assignment of Aircraft Call Signs and Associated Telephonies

Guidance is provided to aircraft operators for requesting an aircraft call sign and explains the assignment and the authorization process for their use domestically, within the National Airspace System (NAS); and their use internationally.

Active AJR-2 2020-10-08
120-110A Aircraft Secondary Barriers and Alternate Flightdeck Security Procedures

The contents of this document do not have the force and effect of law and are not meant to bind the public in any way, and the document is intended only to provide information to the public regarding existing requirements under the law or agency policies.

Active AFS-200 2023-06-01
120-68J Pilot Records Database and Pilot Records Improvement Act

This advisory circular (AC) provides operators and pilots with guidance regarding Title 14 of the Code of Federal Regulations (14 CFR) part 111: the Pilot Records Database (PRD) and the Pilot Records Improvement Act of 1996 (PRIA).

Active AFS-600 2021-06-28
121-42 Leadership and Command Training for Pilots in Command

This AC presents guidelines for developing and implementing leadership and command training for pilots in command (PIC) and second-in-command (SIC) pilots serving in Title 14 of the Code of Federal Regulations (14 CFR) part 121 operations that require three or more pilots.

Active AFS-200 2020-03-03
90-89C Amateur-Built Aircraft and Ultralight Flight Testing Handbook

This AC provides suggestions and safety-related recommendations primarily to assist amateur-built aircraft and ultralight vehicle builders in developing individualized flight test plans.

Active AFS-300 2023-02-14
431.35-2A Reusable Launch and Reentry Vehicle System Safety Process

Provides guidance and information concerning the application of a systematic and logical system safety process and methodology for identification and control of public safety hazards associated with the operation of reusable launch vehicle and reentry vehicle systems.

Active AST-1 2005-07-20
23-13A Fatigue, Fail-Safe, and Damage Tolerance Evaluation of Metallic Structure for Normal, Utility, Acrobatic, and Commuter Category Airplanes

Provides information and guidance concerning an acceptable means of demonstrating compliance with the requirements of Part 23 of the Federal Aviation Regulations (FAR) regarding fatigue and fail-safe evaluation of metallic airplane structure.

Active ACE-100 2005-09-29
121-25 Additional Weather Information: Domestic and Flag Air Carriers

Provides guidance and standards to domestic and flag air carriers for approval of a system for obtaining forecasts and reports of adverse weather phenomena

Active AFS-224 1977-09-16
65-15A [Large AC] Airframe and Powerplant Mechanics Airframe Handbook

Designed to familiarize student mechanics with airframe construction, repair, and the operating theory of airframe systems. SN 050-007-00391-9

Active AFS-630 1976-01-01
25.785-1B Flight Attendant Seat and Torso Restraint System Installations

This advisory circular

CAe) provides information and guidance regarding an acceptable means, but not the only means, of compliance with th~ portions of 14 Code of Federal Regulations (CFR) 25.785 and 14 CFR 121.311, which deal with flight attendant seats.

Active ANM-100 2010-05-11
65-31B Training, Qualification, and Certification of Nondestructive Inspection Personnel

This advisory circular (AC) contains recommendations for the experience, training, qualification, examination, and certification of nondestructive inspection (NDI) personnel for the inspection of aircraft, engines, propellers, accessories, and other aviation components.

Active AFS-300 2014-02-24
150/5380-6C Guidelines and Procedures for Maintenance of Airport Pavements

This AC provides guidelines and procedures for maintaining airport pavements.

Active AAS-100 2014-10-10
20-24D Approval of Propulsion Fuels, Additives, and Lubricating Oils

It also provides guidance on fuel and lubricating oil specifications and standards, and on propulsion fuel and/or lubricating oil certification plans.

Active AIR-20 2014-06-30
121-39 Air Carrier Pilot Remedial Training and Tracking Program

This AC may also provide valuable information to certificate holders in developing and implementing remedial training and tracking of other crewmembers and aircraft dispatchers.

Active AFS-200 2014-12-30
141-1B Part 141 Pilot Schools, Application, Certification, and Compliance

Unlike pilot training conducted under 14 CFR part 61, part 141 pilot schools are required to use a structured training program and syllabus. Part 141 pilot schools may be able to provide a greater variety of training aids and require dedicated training facilities, flight instructor oversight, and FAA-approved course curricula.

Active AFS-800 2017-09-12
00-74 Avionics Human Factors Considerations for Design and Evaluation

This advisory circular (AC) identifies two reports that provide information in the form of “recommended practices” to increase awareness of human factors and facilitate the identification and resolution of human factors/pilot interface issues during the design and evaluation of avionics.

Active AIR-600 2019-05-01
147-3C Certification and Operation of Aviation Maintenance Technician Schools

Conformity with the guidance is voluntary only and nonconformity will not affect rights and obligations under existing statutes and regulations.

Active AFS-300 2022-03-22
150/5230-4C Aircraft Fuel Storage, Handling, and Dispensing on Airports

This AC contains specifications and guidance for the storage, handling, and dispensing of aviation fuel on airports.

Active AAS-300 2021-09-23
20-113 Pilot Precautions and Procedures to be taken in Preventing Aircraft Reciprocating Engine Induction System and Fuel System Icing Problems

Provides information pertaining to aircraft engine induction system icing and the use of fuel additives to reduce the hazards of aircraft operation that may result from the presence of water and ice in aviation gasoline and aircraft fuel systems.

Active ACE-100 1981-10-22
150/5200-38 Protocol for the Conduct and Review of Wildlife Hazard Site Visits, Wildlife Hazard Assessments, and Wildlife Hazard Management Plans

For certificated airports, this Advisory Circular (AC) defines the minimum acceptable standards for the conduct and preparation of Wildlife Hazard Site Visits (Site Visit), Wildlife Hazard Assessments (Assessments) and Wildlife Hazard Management Plans (Plans).

Active AAS-300 2018-08-20
20-146A Methodology for Dynamic Seat Certification by Analysis for Use in Parts 23, 25, 27, and 29 Airplanes and Rotorcraft

This advisory circular (AC) sets forth an acceptable means, but not the only means, for demonstrating compliance with title 14 of the Code of Federal Regulations (14 CFR)
§§ 23.562, 25.562, 27.562, and 29.562, as well as Technical Standard Order (TSO) TSO-C127a, and TSO-C127b.

Active AIR-600 2018-06-29
150/5300-18B General Guidance and Specifications for Submission of Aeronautical Surveys to NGS: Field Data Collection and Geographic Information System (GIS) Standards

Also explains how to submit data to the FAA, which will forward the safety critical data to the National Geodetic Survey (NGS) for independent verification and validation. The standards covered in this document provide critical information for the operation and safety of the National Airspace System (NAS) and are classified as critical by the International Civil Aviation Organization (ICAO).

Active AAS-100 2009-05-21
20-122A Anti-misfueling Devices: Their Availability and Use - Change 1

It also makes recommendations to the fuel suppliers and Fixed Base Operators to change their fuel dispensing nozzles to meet the dimensions referenced in the SAE standard.

Active AFS-340 1991-01-29
43-11 Reciprocating Engine Overhaul Terminology and Standards - Including Change 1

Review Title 14 of the Code of Federal Regulations (14 CFR) regarding engine records and standards.

Active AFS-340 1976-04-07
120-55C Air Carrier Operational Approval and Use of TCAS II

This advisory circular (AC) provides an acceptable, but not the only, means to address Traffic Alert and Collision Avoidance System (TCAS) issues related to installation and use of TCAS II regarding compliance with Title 14 of the Code of Federal Regulations (14 CFR) parts 121, 125, and 129 requirements for air carriers.

Active AFS-400 2011-02-23
23.1309-1E System Safety Analysis and Assessment for Part 23 Airplanes

This advisory circular (AC) sets forth an acceptable means of showing compliance with Title 14 of the Code .of Federal Regulations (14 CFR), § 23.1309, through Amendment 23-6.2: for equipment, systems, and installations in 14 CFR part 23 airplanes. This AC is not mandatory and does not constitute a regulation.

Active ACE-100 2011-11-17
25.1302-1 Installed Systems and Equipment for Use by the Flightcrew

The guidance provided by this AC is intended to minimize the occurrence of design-related errors by the flightcrew and to enable the flightcrew to detect and manage errors that do occur.

Active ANM-111 2013-05-03
20-18B Qualification Testing of Turbojet and Turbofan Engine Thrust Reversers

It does not address aircraft-level effects of the installation and use of a thrust reverser.

Active ANE-111 2015-07-07
20-164A Designing and Demonstrating Aircraft Tolerance to Portable Electronic Devices

This advisory circular (AC) identifies RTCA, Inc., document DO-307A, Aircraft Design and Certification for Portable Electronic Device (PED) Tolerance, dated December 15, 2016, as an acceptable means for designing and demonstrating aircraft toleranceto potential electromagnetic interference from portable electronic devices (PEDs).

Active AIR-100 2017-06-09
450.173-1 Part 450 Mishap Plan – Reporting, Response, and Investigation Requirements

This AC includes recommendations based on lessons learned from past mishaps and insights gained from reviews of mishap plan submittals. This AC does not constitute a regulation and does not contain requirements, but is intended to assist applicants in obtaining commercial space authorizations and operating in compliance with commercial space regulations.

Active AST-1 2021-08-12
150/5210-17C Programs for Training of Aircraft Rescue and Firefighting Personnel

This AC provides information on courses and reference materials for training of Aircraft Rescue and Firefighting (ARFF) personnel.

Active AAS-300 2015-06-12
20-172B Airworthiness Approval for ADS-B In Systems and Applications

This advisory circular (AC) provides guidance for the initial and follow-on installations of Automatic Dependent Surveillance – Broadcast (ADS-B) In systems supporting ground and airborne traffic applications.

Active AIR-130 2015-05-20
120-80B Firefighting of General and High-Energy In-Flight Fires

This AC provides information on the hazards and risks of in-flight fires on transport category aircraft. The information includes recommended crewmember procedures and training for combating general and high-energy fires (HEF) caused by lithium batteries.

Active AFS-200 2023-03-16
20-97B Aircraft Tire Maintenance and Operational Practices with Change 1

This AC is not mandatory and does not constitute a regulation. It is issued for guidance purposes and to outline acceptable tire maintenance and operational practices.

Active AFS-300 2005-04-18
00-59 Integrating Helicopter and Tiltrotor Assets into Disaster Relief Planning

Provides guidance to state and local emergency relief planners on integrating helicopters and tiltrotor aircraft into disaster relief planning efforts.

Active AND-710 1998-11-13
25.905-1 Minimizing the Hazards from Propeller Blade and Hub Failures

Describes an acceptable means for showing compliance with the requirements of Section 25.905, “Propellers,” of Title 14, Code of Federal Regulations (CFR) Part 25.

Active ANM-110 2000-09-27
36-1H Noise Levels for U.S. Certificated and Foreign Aircraft

Provides noise level data for airplanes certificated under FAR Part 36. Noise level data for foreign airplanes certificated to ICAO Annex 16 standards are also provided in a separate appendix for informational purposes.

Active AEE-100 2001-11-15
170-6C Use of Radionavigation Land Test Station and Signal Generators

Gives information as to the frequencies on which the FAA will authorize and the FCC will license radionavigation land test stations. It also discusses the interference potential of signal generators operating in aeronautical bands of the radio spectrum and how this interference can be alleviated.

Active ASM-500 1981-02-13
61-67C Stall and Spin Awareness Training with Change 1 & 2

This advisory circular (AC) explains the stall and spin awareness training required under Title 14 of the Code of Federal Regulations (14 CFR) part 61 and offers guidance to flight instructors who provide that training.

Active AFS-840 2000-09-25
20-105C Reciprocating Engine Power-Loss Accident Prevention and Trend Monitoring

The contents of this document do not have the force and effect of law and are not meant to bind the public in any way, and the document is intended only to provide information to the public regarding existing requirements under the law or agency policies.

Active AFS-300 2023-12-18
20-151C Airworthiness Approval of Traffic Alert and Collision Avoidance Systems (TCAS II), Versions 7.0 & 7.1 and Associated Mode S Transponders

You can also use the guidance in this AC for seeking airworthiness approval for TCAS II version 7.0 (V7.0) certified to TSO-C119b, Traffic Alert and Collision Avoidance System (TCAS) Airborne Equipment, TCAS II and associated Mode S transponders.

Active AIR-100 2017-07-21
150/5320-12C Measurement, Construction, and Maintenance of Skid Resistant Airport Pavement Surfaces

Contains guidelines and procedures for the design and construction of skid-resistant pavement; pavement evaluation, without or with friction equipment; and maintenance of high skid-resistant pavements.

Active AAS-100 1997-03-18
43-206 Inspection, Prevention, Control, and Repair of Corrosion on Avionics Equipment

AC contains acceptable methods, techniques, and practices for inspection, prevention, control and repair of corrosion on avionic systems and equipment.

Active AFS-300 2001-05-30
135-42 Extended Operations (ETOPS) and Operations in the North Polar Area

This advisory circular (AC) provides certificate holders with guidance for obtaining operational approval to conduct Extended Operations (ETOPS) under Title 14 of the Code of Federal Regulations (14 CFR) part 135.

Active AFS-220 2008-06-10
150/5220-10E Guide Specification for Aircraft Rescue and Fire Fighting (ARFF) Vehicles

Provides an interactive specification that airports can use in procuring Aircraft Rescue and Fire Fighting (ARFF) vehicles. It describes the selection process, vehicle requirements, and how to produce formal specifications.

Active AAS-100 2011-06-01
150/5000-15B Announcement of Availability of Airport-Related Research and Development Products

This AC explains how to obtain the latest airport-related research and development (R&D) products funded by the Federal Aviation Administration’s (FAA’s) Airports Organization, particularly the FAA’s Airport Technology Research and Development Branch, the Airport Cooperative Research Program (ACRP), the Innovative Pavement Research Foundation (IPRF), and the Airfield Asphalt Pavement Technology Program (AAPTP).

Active AAS-100 2013-07-23
20-138D Airworthiness Approval of Positioning and Navigation Systems (Including Change 2)

This revision adds minor clarifications and new guidance material based on issues and questions since revision ‘C’ was published.

Active AIR-130 2014-03-28
150/5210-14C Aircraft Rescue Fire Fighting Equipment, Tools and Personal Protective Equipment

This AC contains references to the minimum standards for the selection and performance of aircraft rescue and firefighting personal protective equipment (PPE), self-contained breathing apparatus (SCBA), and powered rescue tools.

Active AAS-300 2024-02-23
450.3-1 Definition of Launch and Scope of a Vehicle Operator License

This Advisory Circular (AC) provides guidance on the Federal Aviation Administration’s (FAA) definition of “launch” in § 401.7, and the determination of the beginning of a launch at a United States (U.S.) launch site, per § 450.3(b)(1) and (d).

Active AST-1 2022-09-29
45-3A Installation, Removal or Change of Identification Data and Identification Plates on Aircraft Engines

This advisory circular (AC) provides information about Title 14, Code of Federal Regulations (14 CFR) part 45, Identification and Registration Marking. This AC is not mandatory and does not constitute a regulation.

Active AIR-200 2010-08-03
43-2B Minimum Barometry for Calibration and Test of Atmospheric Pressure Instruments

Provides guidance material which may be used to determine the adequacy of barometers used in the calibration of aircraft static instruments and presents information concerning the general operation, calibration, and maintenance of such barometers.

Active AFS-343 1980-10-16
121-28 Preparation and Loading of Magnetron Magnetic Materials for Air Transportation

Provides information relevant to the preparation and loading of magnetic materials for shipment in civil aircraft

Active ACS-120 1987-03-19
23-16A Powerplant Guide for Certification of Part 23 Airplanes and Airships

This advisory circular (AC) provides information and guidance about acceptable means, but not the only means of compliance with Title 14 of the Code of Federal Regulations (14 CFR) part 23, subpart E, applicable to the powerplant installation in normal, utility, acrobatic, and commuter category airplanes.

Active ACE-100 2004-02-23
21-51 Applicant’s Showing of Compliance and Certifying Statement of Compliance

We, the Federal Aviation Administration (FAA), wrote this advisory circular (AC) to describe how to comply with the requirements of Title 14 of the Code of Federal Regulations (14 CFR) 21.20, 21.97 and 21.303(a)(5).
This AC is not mandatory and is not a regulation.

Active AIR-110 2011-09-27
150/5100-14E Architectural, Engineering, and Planning Consultant Services for Airport Grant Projects

This AC provides guidance for airport sponsors in the selection and engagement of architectural, engineering, and planning consultants.

Active AAS-100 2014-09-30
00-60B North American Free Trade Agreement and Specialty Air Services Operations

NAFTA opens up cross-border trade in Specialty Air Services (SAS) and was ratified by the United States of America, the United Mexican States, and Canada.

Active AFS-800 2014-02-12
33.83-1 Comparative Method to Show Equivalent Vibratory Stresses and High Cycle Fatigue Capability for Parts Manufacturer Approval of Turbine Engine and Auxiliary Power Unit Parts

PMA applicants may use this comparative modal and high-cycle fatigue (HCF) method to show the vibratory stresses and HCF capability of their proposed blades or vanes are equivalent to those of the type design parts.

Active ANE-111 2009-09-08
136-1 Commercial Air Tour Operations Conducted Over National Parks and Tribal Lands

This Advisory Circular (AC) contains information, directions, and procedures for obtaining operating authority for commercial air tour operations over national parks and tribal lands.

Active AFS-200 2002-10-25
43-207 Correlation, Operation, Design, and Modification of Turbofan/Jet Engine Test Cells

Provides guidance regarding test cell correlation procedures for test cells used for in-service acceptance testing of turbofan and turbojet engines. This AC discusses the effects of the design, operation, and modification of a test cell and engine test hardware on engine performance.

Active AFS-100 2002-12-26
34-1B Fuel Venting and Exhaust Emission Requirements for Turbine Engine Powered Airplanes

The Intent of this AC is to promote uniformity of implementation of the emissions certification requirement of Part 34 of the Federal aviation Regulations.

Active AEE-300 2003-06-27
21-32B Control of Products and Parts Shipped Prior to Type Certificate Issuance

Is not mandatory and does not constitute a regulation. This AC describes an acceptable means, but not the only means, to comply with these requirements.

Active AIR-200 2010-08-31
120-104 Establishing and Implementing Limit of Validity to Prevent Widespread Fatigue Damage

This advisory circular (AC)offers guidance on compliance with Title 14 Code of Federal Regulations (14 CFR) 26.21, 26.23, 121.1115, and 129.115. It tells design approval holders of transport category airplanes how to establish a limit of validity of the engineering data that supports the structural maintenance program (hereafter referred to as LOV) for those airplanes.

Active ANM-100 2011-01-10
120-74B Parts 91, 121, 125, and 135 Flightcrew Procedures During Taxi Operations

Operators may integrate the information contained in Appendices 1 and 2 into their fleet-specific, route-specific, and equipment-specific operations and checklists.

Active AFS-200 2012-07-30
21.303-4 Application for Parts Manufacturer Approval Via Tests and Computations or Identicality

For example, AC 33-8 has guidance for Parts Manufacturer Approval of Turbine Engine and Auxiliary Power Unit Parts under Test and Computation.

Active AIR-110 2014-03-21
20-162B Airworthiness Approval of Installed Radio Frequency Identification (RFID) Tags and Sensors

This advisory circular (AC) provides certification applicants with airworthiness guidance for installing passive, battery-assisted passive (BAP), and active radio frequency identification (RFID) tags and sensors on aviation products and equipment.

Active AIR-600 2018-10-11
20-157 How to Prepare Reliability Assessment Plans for Aircraft Systems and Equipment

This AC shows you how to develop and use a reliability assessment plan. An assessment plan documents the controlled, repeatable processes for assessing the reliability of aircraft and engine electronic and electrical systems, including their electromechanical elements and equipment.

Active AIR-120 2007-01-19
145-4A Inspection, Retread, Repair, and Alterations of Aircraft Tires - Including Change 2

Provides guidance for the development, qualification, and approval of aircraft tire repair and retread process specifications, and the use of special nondestructive inspection (NDI) techniques.

Active AFS-309 2006-07-10
91-68 Pilot Qualification and Operation of all Surplus Military Turbine-Powered Airplanes

Provides information and guidance to pilots who wish to become qualified to operate surplus military turbine-powered airplanes under a letter of authorization, as required by operating limitations issued for this type of aircraft.

Active AFS-820 1992-02-25
23-10 Auxiliary Fuel Systems for Reciprocating and Turbine Powered Part 23 Airplanes Active ACE-111 1991-08-05
91-59A Inspection and Care of General Aviation Aircraft Exhaust Systems - Change 1

This advisory circular (AC) emphasizes the safety hazards of poorly maintained aircraft exhaust systems (reciprocating powerplants) and highlights points at which exhaust system failures occur. Further, it provides information on the types of problems to expect and recommends that pilots perform ongoing preventive maintenance and that mechanics perform maintenance.

Active AFS-300 2007-07-23
33.27-1A Engine and Turbosupercharger Rotor Overspeed Requirements of 14 CFR § 33.27.

This advisory circular (AC) provides guidance and acceptable methods, but not the only methods, for demonstrating compliance with the rotor strength (overspeed) requirements of Title 14 of the Code of Federal Regulations (14 CFR) 33.27.

Active ANE-111 2011-07-18
21-52 Obtaining Foreign Design Approval / Acceptance of U.S. Products and Articles

Its purpose is to provide information and offer guidance that will help obtain foreign design approval/acceptance. b.

Active AIR-40 2013-03-07
121-40 14 CFR Part 121 and Part 135 Dangerous Goods Transportation Operations

This Advisory Circular (AC) provides certificate holders with recommended contents for a dangerous goods training program and manual designed to guide and manage dangerous goods operations.

Active AXH-1 2017-12-13
120-71B Standard Operating Procedures and Pilot Monitoring Duties for Flight Deck Crewmembers

This advisory circular (AC) provides guidance for the design, development, implementation, evaluation, and updating of standard operating procedures (SOP), and for pilot monitoring (PM) duties.

Active AFS-200 2017-01-10
150/5345-42J Specification for Airport Light Bases, Transformer Housings, Junction Boxes, and Accessories

This AC provides standards for critical dimensions and performance requirements.

Active AAS-100 2019-09-12
65-33A Development of Training/Qualification and Certification Programs for Composite Maintenance Technicians

This advisory circular (AC) is intended as a guideline for repair organizations to develop a formal training program for qualification and certification of composite technicians that they employ. This AC contains recommendations for the experience, training, qualification, and examination of persons performing maintenance and repair of aircraft composite structures or other aviation composite components.

Active AFS-300 2017-06-27
120-57C Low Visibility Operations/Surface Movement Guidance and Control Systems (LVO/SMGCS)

This AC provides guidance for airport operators when developing an LVO/SMGCS Plan. There may be valid safety and operational reasons for a specific LVO/SMGCS Plan to vary from the AC 120-57 (current edition) guidance due to unique local issues, environmental factors, or volume of traffic operations.

Active AFS-400 2023-09-26
23.562-1 Dynamic Testing of Part 23 Airplane Seat/Restraint Systems and Occupant Protection

Provides information and guidance regarding compliance with Part 23 of the Federal Aviation Regulations (FAR) applicable to dynamic testing of airplane seats.

Active ACE-111 1989-06-22
120-41 Criteria for Operational Approval of Airborne Wind Shear Alerting and Flight Guidance

Establishes an acceptable means, but not the only means, of obtaining operational approval of an airborne wind shear alerting and flight guidance system. It describes acceptable simulation test criteria, wind field modeling data, and minimum performance parameters for evaluating candidate systems.

Active AFS-400 1983-11-07
150/5100-20 Guidance on the Extraction of Oil and Gas on Federally Obligated Airports

The AC was produced as a joint effort by the FAA’s Offices of Airport Planning and Programming, Airport Safety and Standards, and Airport Compliance and Management Analysis.

Active APP-400 2016-03-23
21-43A Production Under 14 CFR Part 21,Subparts F, G, K, and O

This advisory circular (AC) provides information for production approval holders (PAH) pursuant to Title 14 of the Code of Federal Regulations (14 CFR) part 21, Certification Procedures for Products and Articles. This AC provides PAHs and applicants for a production approval with guidance for developing and maintaining a production system that is appropriate to the PAH’s operations and complies with the regulations.

Active AIR-110 2015-10-01
20-115D Airborne Software Development Assurance Using EUROCAE ED-12( ) and RTCA DO-178( )

This AC recognizes the following current EUROCAE and RTCA, Inc. documents: (1) EUROCAE ED-12C, Software Considerations in Airborne Systems and Equipment Certification, dated January 2012, and RTCA DO-178C, Software Considerations in Airborne Systems and Equipment Certification, dated December 13, 2011. (2) EUROCAE ED-215, Software Tool Qualification Considerations, dated January 2012, and RTCA DO-330, Software Tool Qualification Considerations, dated December 13, 2011. (3) EUROCAE ED-218, Model-Based Development and Verification Supplement to ED-12C and ED-109A, dated January 2012, and RTCA DO-331, Model-Based Development and Verification Supplement to DO-178C and DO-278A, dated December 13, 2011. (4) EUROCAE ED-217, Object-Oriented Technology and Related Techniques Supplement to ED-12C and ED-109A, dated January 2012, and RTCA DO-332, Object-Oriented Technology and Related Techniques Supplement to DO-178C and DO-278A, dated December 13, 2011. (5) EUROCAE ED-216, Formal Methods Supplement to ED-12C and ED-109A, dated January 2012 and RTCA DO-333, Formal Methods Supplement to DO-178C and DO-278A, dated December 13, 2011.

Active AIR-134 2017-07-21
61-141 Flight Instructors as Certifying Officials for Student Pilot and Remote Pilot Applicants

This AC applies to submissions of either an Integrated Airman Certification and Rating Application (IACRA) or a paper application.

Active AFS-800 2018-06-25
20-143 Installation, Inspection, and Maintenance of Controls for General Aviation Reciprocating Aircraft Engines

Provides guidance regarding the inspection, maintenance, and installation of engine controls with emphasis on the airframe portion of these systems.

Active ACE-100 2000-06-06
91-73B Parts 91 and 135 Single Pilot, Flight School Procedures During Taxi Operations

In accordance with the current edition of Federal Aviation Administration (FAA) Order 7050.1, Runway Safety Program, the definition of a runway incursion is, any occurrence at an aerodrome involving the incorrect presence of an aircraft, vehicle, or person on the protected area of a surface designated for the landing and takeoff of aircraft. This AC is intended for use by persons operating aircraft single pilot under Title 14 of the Code of Federal Regulations (14 CFR) parts 91 and 135, and flight schools.

Active AFS-200 2012-07-30
90-67B Light Signals from the Control Tower for Ground Vehicles, Equipment, and Personnel

Provides the aviation community with the meaning of the light signals used when communicating with ground vehicles, equipment, and personnel on the airport movement area from the control tower.

Active ATP-129 1994-08-25
150/5300-15A Use Of Value Engineering For Engineering And Design Of Airport Grant Projects

Provides guidance on using value engineering (VE) in airport projects funded under the Federal Aviation Administration's (FAA's) Airport Grant program.

Active AAS-100 2008-09-30
121-22C Maintenance Review Boards, Maintenance Type Boards, and OEM/TCH Recommended Maintenance Procedures

This advisory circular (AC) provides guidelines that industry may use to develop and revise the minimum scheduled tasking/interval requirements for derivative or newly type-certificated (TC) aircraft and powerplants for Federal Aviation Administration (FAA) approval.

Active AFS-300 2012-08-27
120-29A Criteria for Approval of Category I and Category II Weather Minima for Approach

This AC provides an acceptable means, but not the only means, for obtaining and maintaining approval of CAT I & II Weather Minima including the installation and approval of associated aircraft systems.

Active AFS-400 2002-08-12
33-6 Weld Repair of Aluminum Crankcases and Cylinders of Piston Engines - Including Change 1

This advisory circular also includes information on critical areas of welding, qualifications of welder's, inspection techniques, the thermal processes, and technical data required. This advisory circular references industry and military specifications which are acceptable for use by repair stations as approved data.

Active ANE-110 1994-12-20
120-28D Criteria for Approval of Category III Weather Minima for Takeoff, Landing, and Rollout

States an acceptable means, not the only means, for obtaining approval of Category III Landing Weather Minima and low visibility takeoff, including the installation and approval of associated aircraft systems.

Active AFS-400 1999-07-13
20-141B Airworthiness and Operational Approval of Digital Flight Data Recorder Systems with Change 1

This AC provides information on certification (design and installation) and continued airworthiness of digital flight data recorder systems (DFDRS).

Active AIR-626 2010-08-17
00-66 Selection of Cyclic Redundancy Code and Checksum Algorithms to Ensure Critical Data Integrity

This report is provided for information only and, as such, is not intended as guidance but rather as reference material for the aviation industry.

Active AIR-130 2015-08-04
00-63A Use of Cockpit Displays of Digital Weather and Aeronautical Information - Including Change 1

FIS is a service that provides Meteorological Information (METI) and Aeronautical Information (AI) to enhance pilot awareness of weather and/or airspace constraints while providing information for decision support tools and improving safety.

Active AFS-400 2014-04-07
120-53B Guidance for Conducting and Use of Flight Standardization Board Evaluations - With Change 1

(2) Directly relating pilot training and qualification requirements to fleet characteristics, operating concepts, and pilot assignments.

Active AFS-100 2013-11-05
120-118 Criteria for Approval/Authorization of all Weather Operations for Takeoff, Landing, and Rollout

This advisory circular (AC) provides an acceptable means, but not the only means, for obtaining and maintaining authorization of operations in Category (CAT) I, CAT II, and CAT III landing weather minima and instrument flight rules (IFR) lower-than-standard takeoff minima.

Active AFS-400 2018-07-02
23-20 Acceptance Guidance on Material Procurement and Process Specifications for Polymer Matrix Composite Systems

It is applicable to the material and process specifications, or other documents, used to ensure sufficient control of composite prepreg materials in normal, utility, acrobatic, and commuter category airplanes.

Active ACE-100 2003-09-19
60-11C Test Aids and Materials that may be used by Airman Knowledge Testing Applicants

Provides information concerning test aids and materials that may be used by applicants taking airman knowledge tests.

Active AFS-630 1999-04-26
25-20 Pressurization, Ventilation and Oxygen Systems Assessment for Subsonic Flight including High Altitude Operation

Provides guidance on methods of compliance with the requirements of part 25 of the Federal Aviation Regulations pertaining to pressurization, ventilation, and oxygen systems, especially as they pertain to high altitude subsonic flight.

Active ANM-111 1996-09-10
20-117 Hazards Following Ground Deicing and Ground Operations in Conditions Conducive to Aircraft Icing

Provides information on the identified hazards associated with ground deicing and ground operations in conditions conducive to aircraft icing.

Active AFS-200 1982-12-03
23-18 Installation of Terrain Awareness and Warning System (TAWS) Approved for Part 23 Airplanes

Establishes an acceptable means, but not the only means, of obtaining FAA airworthiness approval for the installation of a TAWS that has been approved under Technical Standard Order (TSO)-C151A, Terrain Awareness and Warning System, in a Part 23 airplane. The FAA’s TSO process is a means for obtaining FAA design and performance approval for an appliance, system, or product; however, the TSO does not provide installation approval.

Active ACE-100 2000-06-14
90-100A U.S Terminal and En Route Area Navigation (RNAV) Operations with Change 2

Area Navigation (RNAV) routes, Instrument Departure Procedures (DPs), and Standard Terminal Arrivals (STARs). Operators and pilots should use the guidance in this AC to determine their eligibility for these U.S.

Active AFS-400 2007-03-01
20-171 Alternatives to RTCA/DO-178B for Software in Airborne Systems and Equipment

RTCA/DO-178B is recognized by industry and certification authorities as an accepted approach for assuring that software in airborne systems and equipment has been developed to meet the safety objectives of the regulations.

Active AIR-120 2011-01-19
20-176A Service Bulletins Related to Airworthiness Directives and Indicating FAA Approval on Service Documents

This AC also provides information and guidance on ex parté communication and alternative methods of compliance (AMOC), as well as means for avoiding overlapping and conflicting actions in SBs and maintaining airworthiness of AD-mandated design changes.

Active AIR-140 2014-06-16
150/5340-5D Segmented Circle Airport Marker System

This AC provides standards for a system of airport marking consisting of certain pilot aids and traffic control devices.

Active AAS-100 2013-09-25
90-96A Approval of U.S. Operators and Aircraft to Operate Under Instrument Flight Rules (IFR) in European Airspace Designated for Basic Area Navigation (B-RNAV) and Precision Area Navigation (P-RNAV)

Provides guidance regarding on-board Area Navigation (BRNAV) equipment requirements for operators of U.S. registered civil aircraft, operating in a Basic Area Navigation (BRNAV) environment in the European region.

Active AFS-400 2005-01-13
90-108 Use of suitable Area navigation (RNAV) system on Conventional Routes and Procedures - Change 1

This advisory circular (AC) provides operational and airworthiness guidance regrading the suitablity and use of RNAV systems while operating on or transitioning to, conventional i.e. non-RNAV, routes and procedures within the United States (US) National Airspace System (NAS).

Active AFS-400 2011-03-03
20-154 Guide for Developing a Receiving Inspection System for Aircraft Parts and Material - Change 1

Like all AC material, this AC is not mandatory and does not constitute a regulation. It is issued for guidance and to outline a method of compliance with the rules.

Active AFS-300 2005-12-12
39-8 Continued Airworthiness Assessments of Powerplant and Auxiliary Power Unit Installations of Transport Category Airplanes

The Federal Aviation Administration (FAA) Engine and Propeller Directorate (EPD) and the Transport Airplane Directorate (TAD) may use CAAM to identify unsafe conditions and determine when an “unsafe condition is likely to exist or develop in other products of the same type design” before prescribing corrective action in accordance with Title 14 of the Code of Federal Regulations (14 CFR) part 39.

Active AIR-100 2003-09-08
25.851-1 Built-in Fire Extinguishing/Suppression Systems in Class C and Class F Cargo Compartments

This advisory circular (AC) provides guidance concerning compliance with the airworthiness standards for transport category airplanes pertaining to Class C and Class F cargo compartments that incorporate built-in fire extinguishing/suppression systems.

Active ANM-112 2016-02-03
91-85B Authorization of Aircraft and Operators for Flight in Reduced Vertical Separation Minimum (RVSM) Airspace

This advisory circular (AC) provides airworthiness and operational authorization guidance material for operators, pilots, certificate holders, and/or program managers conducting Title 14 of the Code of Federal Regulations (14 CFR) part 91, §§ 91.180 and 91.706 Reduced Vertical Separation Minimum (RVSM) operations.

Active AFS-400 2019-01-29
120-117 Voluntary Disclosure Reporting Program for Apparent Violations of the Drug and Alcohol Testing Regulations

This AC provides the information and guidance material an employer or contractor needs in order to voluntarily disclose an apparent violation ofthe drug and alcohol testing regulations listed in paragraph 3 ofthis AC.

Active AAM-800 2017-12-20
413.13-1 Guidance on Submitting a Complete Enough and Complete Application for a Vehicle Operator License

This Advisory Circular (AC) provides guidance on demonstrating compliance with the requirements of completing a license application in accordance with Title 14 of the Code of Federal Regulations (CFR) §§ 413.11 and 413.13. This document details what constitutes a complete enough submission for application acceptance and a complete submission of an application for a license determination under 14 CFR part 450.

Active AST-1 2023-12-18
437.73-1 Anomaly Reporting and Corrective Action for a Reusable Suborbital Rocket Operating Under an Experimental Permit

Provide guidance for reporting anomalie occurring in reusable suborbital rockets operating under an expermentalpermit issued by the Federal Aviation Administration (FAA) This AC also provide guidance for implementing an anomaly reporting and corrective action system for reusable suborbital rockets operating under FAA-issued experimental permit.

Active AST-1 2007-04-20
21-28 Airworthiness Certification of U.S.-Produced Aircraft and Engine Kits Assembled Outside the United States

Provides information and guidance concerning airworthiness certification requirements for aircraft or aircraft engines, assembled from kits by aircraft or aircraft engine manufacturers located in other countries.

Active AIR-220 1990-06-20
25.562-1B Dynamic Evaluation of Seat Restraint Systems and Occupant Protection on Transport Airplanes / with Change 1

The AC provides background and discussion of the reasoning behind the test procedures.

Active ANM-110 2006-01-10
150/5100-17 Land Acquisition and Relocation Assistance for Airport Improvement Program Assisted Projects (Consolidated through Change 7)

Provides guidance to sponsors of airport projects developed under the Airport Improvement Program (AIP) to meet the requirements of the Uniform Relocation Assistance and Real Property Acquisition Policies Act of 1970 (PL 91-646, as amended) and the Regulations of the Office of the Secretary of Transportation, 49 CFR Part 24.

Active APP-400 2017-07-10
23.1521-2 Type Certification of Oxygenates and Oxygenated Gasoline Fuels in Part 23 Airplanes with Reciprocating Engines

Provides information and guidance concerning an acceptable means of compliance with Part 3 of the Civil Air Regulations (CAR) and Part 23 of the Federal Aviation Regulations (FAR), applicable to approval procedures for certification of alternate fuels.

Active ACE-100 1996-04-24
21-23B Airworthiness Certification of Civil Aircraft, Engine, Propellers, and Related Products Imported to the United States

Provides information on the Federal Aviation Administration’s (FAA) objectives, regulations, and general practices for the United States of America airworthiness certification or acceptance of civil aeronautical products imported to the U.S.

Active AIR-40 2004-11-17
33.28-2 Guidance Material for 14 CFR 33.28, Reciprocating Engine, Electrical and Electronic Engine Control Systems

Provides guidance and acceptable methods, but not the only methods, that may be used by designers of reciprocating engine electronic control systems to demonstrate compliance with §33.28 of Title 14 of the Code of Federal Regulations (14 CFR 33.28), Electrical and electronic engine control systems.

Active ANE-110 2003-08-13
33.28-1 Compliance Criteria for 14 CFR §33.28, Aircraft Engines, Electrical and Electronic Engine Control Systems

This advisory circular (AC) provides guidance and acceptable methods, but not the only methods, that may be used to demonstrate compliance with 14 CFR 33.28, Electrical and Electronic Engine Control Systems.

Active ANE-110 2001-06-29
90-80C Approval of Offshore Standard Approach Procedures, Airborne Radar Approaches, and Helicopter En Route Descent Areas

This AC provides criteria and describes acceptable methods for obtaining approval to use Offshore Standard Approach Procedures (OSAP), Airborne Radar Approaches (ARA), and Helicopter En Route Descent Areas (HEDA) to descend in uncontrolled airspace to an altitude where the pilot can proceed to land using visual references to the surface.

Active AFS-400 2017-12-21
91-33A Use of Alternate Grades of Aviation Gasoline for Grade 80/87, and Use of Automotive Gasoline

This circular also provides suggestions for added safety in the use of automotive gasoline in those aircraft engines and aircraft covered by Supplemental Type Certificates (STCs).

Active ANE-110 1984-07-18
33-7A Guidance for 30-Second and 2-Minute One-Engine-Inoperative (OEI) Ratings for Rotorcraft Turbine Engines

This advisory circular (AC) provides guidance and acceptable means, but not the only means, for demonstrating compliance with the specific requirements applicable to 30-second and 2-minute One-Engine-Inoperative (OEI) rotorcraft turbine engine ratings in part 33 of Title 14 of the Code of Federal Regulations (14 CFR part 33).

Active ANE-111 2009-06-11
20-128A Design Considerations for Minimizing Hazards caused by Uncontained Turbine Engine and Auxiliary Power Unit Rotor Failure

Sets forth a method of compliance with the requirements of Sections 23.903(b)(1), 25.901(d) and 25.903(d)(1) of the FAR pertaining to design precautions taken to minimize the hazards to an airplane in the event of uncontained engine or auxiliary power unit rotor (compressor and turbine) failure and engine fan blade failures.

Active ANM-114 1997-03-25
00-72 Best Practices for Airborne Electronic Hardware Design Assurance Using EUROCAE ED-80( ) and RTCA DO-254( )

The contents of this document do not have the force and effect of law and are not meant to bind the public in any way. This document is intended only to provide clarity to the public regarding existing requirements under the law or agency policies.

Active AIR-600 2022-10-07
20-185A Airworthiness Approval of Synthetic Vision Systems, Synthetic Vision Guidance Systems and Aircraft State Awareness Synthetic Vision Systems

The Federal Aviation Administration (FAA) has consolidated all synthetic vision related guidance into this advisory circular (AC).

Active AIR-600 2021-01-27
20-104 Revised Powerplant Engineering Report No. 3A Standard Fire Test Apparatus and Procedure (for Flexible Hose Assemblies)

Announces the availability of the subject report.

Active AIR-120 1978-07-19
145-11A Repair Station Guidance for Compliance with the Safety Agreement between the United States and the European Union

This advisory circular (AC) provides information and guidance regarding a repair station located in the United States obtaining, renewing, or amending a European Aviation Safety Agency (EASA) Part-145 approval and an Approved Maintenance Organization (AMO) located within the European Union (EU) obtaining, renewing, or amending a Federal Aviation Administration (FAA) repair station certificate under the provisions of the U.S.

Active AFS-300 2012-11-28
150/5340-26C Maintenance of Airport Visual Aid Facilities Active AAS-100 2014-06-20
25-23 Airworthiness Criteria for the Installation Approval of a Terrain Awareness and Warning System (TAWS) for Part 25 Airplanes

Describes an acceptable means for obtaining FAA airworthiness approval for the installation of a Terrain Awareness and Warning System (TAWS) that has been approved under Technical Standard Order (TSO)-C151a.

Active ANM-130L 2000-05-22
00-69 The title is Best Practices for Airborne Software Development Assurance Using EUROCAE ED-12( ) and RTCA DO-178( )

This advisory circular (AC) provides information in the form of “best practices” and, as such, is not intended as guidance but rather as complementary information to ED-12C/DO-178C (and related documents) and AC 20-115D.

Active AIR-100 2017-07-21
33.4-3 Instructions for Continued Airworthiness, Aircraft Engine High Intensity Radiated Fields (HIRF) and Lightning Protection Features - Including Change 1

This advisory circular (AC) change updates the references provided in the original document. The AC change number and the date of the change are shown at the top of each applicable page.

Active ANE-111 2005-09-16
20-177 Design and Installation Guidance for an Airborne System for Non-Required Telecommunication Service in Non Aeronautical Frequency Bands

ASNRT equipment is intended to provide flight crews with voice and data communication service over non aeronautical frequency bands.

Active AIR-130 2012-02-28
20-158A The Certification of Aircraft Electrical and Electronic Systems for Operation in the High-intensity Radiated Fields (HIRF) Environment

This advisory circular (AC) will provide you with information and guidance on how to show compliance with Title 14, Code of Federal Regulations (14 CFR) 23.1308, 25.1317, 27.1317, and 29.1317, High-intensity Radiated Fields (HIRF) Protection.

Active AIR-130 2014-05-30
20-167A Airworthiness Approval of Enhanced Vision System, Synthetic Vision System, Combined Vision System, and Enhanced Flight Vision System Equipment

The preamble accompanying the 2016 EFVS rule specifically references paragraphs 4-5, 4-5.c.4, 4-5.c.4.(h).(iv), and 6-2.f.4. These referenced paragraphs equate to paragraphs 4.5, 4.5.3.4, 4.5.3.4.8.4, 6.2.6.4, respectively.

Active AIR-130 2016-12-06
60-28B FAA English Language Standard for an FAA Certificate Issued Under 14 CFR Parts 61, 63, 65, and 107

This advisory circular (AC) introduces the Federal Aviation Administration (FAA) Aviation English Language Standard (AELS) and provides guidance to applicants, airmen, training organizations, Designated Examiners (DE), and flight and ground instructors on how to determine that an applicant for an FAA certificate or a person holding an FAA certificate meets the FAA AELS.

Active AFS-800 2017-06-02
33.87-2 Comparative Endurance Test Method to Show Durability for Parts Manufacturer Approval of Turbine Engine and Auxiliary Power Unit Parts

Comparative Endurance Test Method to Show Durability for Parts Manufacturer Approval of Turbine Engine and Auxiliary Power Unit Parts

Active ANE-110 2009-06-25
25-27A Development of Transport Category Airplane Electrical Wiring Interconnection Systems Instructions for Continued Airworthiness Using and Enhanced Zonal Analysis Procedure

That rule requires design approval holders (DAHs) and applicants to develop instructions for continued airworthiness (ICA) consisting of maintenance and inspection tasks, intervals, and procedures for the representative airplane’s electrical wiring interconnection systems (EWIS) for each affected type design.

Active ANM-100 2010-05-04
43-210A Standardized Procedures for Obtaining Approval of Data Used in the Performance of Major Repairs and Major Alterations - Change 1

This AC also provides information that can help determine if a proposed repair/alteration requires approved data, guidance and standardized procedures for obtaining field approval (or approval by other means) of data, and instructions for completing the field approval checklist.

Active AFS-300 2016-08-17
107-2A Small Unmanned Aircraft System (Small UAS)

This AC provides guidance in the areas of airman (remote pilot) certification, aircraft registration and marking, aircraft airworthiness, and the operation of small Unmanned Aircraft Systems (UAS) in the National Airspace System (NAS) to promote compliance with the requirements of Title 14 of the Code of Federal Regulations (14 CFR) part 107.

Active AFS-800 2021-02-01
150/5345-5B Circuit Selector Switch

Contains a specification for a circuit selector switch for use in airport lighting circuits.

Active AAS-100 2006-09-14
33-11 Oxidation, Hot Corrosion, Thermal Fatigue, and Erosion Characteristics Testing to Support 14 CFR, Part 33, § 33.15, Compliancefor Turbine Engines

These equivalencies relate to oxidation, hot corrosion, and thermal fatigue and erosion characteristics in the engine environment.

Active ANE-111 2014-09-23
20-33B Technical Information Regarding Civil Aeronautics Manuals 1, 3, 4a, 4b, 5, 6, 7, 8, 9, 13, and 14

Advises the public that policy information contained in the subject Civil Aeronautics Manuals may be used in conjunction with specific sections of the Federal Aviation Regulations.

Active AIR-100 1975-05-01
150/5345-51B Specification for Discharge-Type Flashing Light Equipment

Contains the specifications for discharge-type flashing light equipment to be used for runway end identification lights (REIL) and for an omni-directional approach lighting system (ODALS).

See also Notice to Manufacturers of Airport Lighting and Navigation Aid Equipment about AIP Buy American Requirement (12/19/2011).

Active AAS-100 2010-09-08
39-1A JIG Fixtures; Replacement of Wing Attach Angles and Doublers on Douglas DC-3 Series Aircraft, Airworthiness Directive 66-18-2

Describes methods of determining that jig fixtures used in the replacement of the subject attached angles and doublers meet the requirements of Airworthiness Directive 66-18-2.

Active AFS-340 1970-03-05
150/5200-36B Qualifications for Wildlife Biologist Conducting Wildlife Hazard Assessments and Training Curriculums for Airport Personnel Involved in Controlling Wildlife Hazards on Airports

This AC describes the qualifications for wildlife biologists who conduct Wildlife Hazard Assessments (WHA) for airports, and it addresses the minimum wildlife hazard management curriculum for the initial and recurrent training of airport personnel who implement Wildlife Hazard Management Plans (WHMPs).

Active AAS-300 2019-01-24
150/5345-45C Low-Impact Resistant (LIR) Structures

Contains the FAA specifications for low-impact resistant (LIR) structures used to support approach lighting systems (ALS) at airports.

Active AAS-100 2007-04-06
150/5345-49D Specification L-854, Radio Control Equipment

This AC contains the specifications for radio control equipment to be used for controlling airport lighting facilities.

Active AAS-100 2017-01-17
90-107 Guidance for Localizer Performance with Vertical Guidance and Localizer Performance without Vertical Guidance Approach Operations in the U.S.

This advisory circular (AC) provides guidance for operators to conduct Title 14 of the Code of Federal Regulations (14 CFR) part 97 instrument flight rules (IFR) Area Navigation (RNAV) Global Positioning System (GPS) instrument approach procedures (IAP) with Localizer Performance with Vertical guidance (LPV) and Localizer Performance without vertical guidance (LP) lines of minima using the wide area augmentation system (WAAS).

Active AFS-400 2011-02-11
33.87-1A Engine Overtorque Test, Calibration Test, Endurance Test, and Teardown Inspection for Turbine Engine Certification (§§ 33.84, 33.85, 33.87, 33.93)

This advisory circular (AC) provides a method of compliance for the test requirements of Title 14, of the Code of Federal Regulations (14 CFR) 33.84 (engine overtorque test) when the applicant chooses to run that test as part of the endurance test of § 33.87. It also provides information and guidance on the test requirements of § 33.85 (calibration test), § 33.87 (endurance test), and § 33.93 (teardown inspection).

Active ANE-111 2015-03-09
120-116 Operations and Airworthiness Considerations for U.S.-Based Leasing Companies Operating U.S.

This AC is not mandatory and does not constitute a regulation. This AC describes an acceptable means, but not the only means, for U.S.

Active AFS-800 2017-10-27
61-143 Conversion Process for Pilot Certificates in Accordance with the Technical Implementation Procedures - Licensing as Part of the Bilateral Aviation Safety Agreement Between the FAA and EASA

It also contains information on whom to contact and where to find the process for converting an FAA pilot certificate to an EU Part-FCL pilot license.

Active AFS-800 2021-06-22
61-135A Conversion Process for Pilot Certificates in Accordance with the Implementation Procedures for Licensing as part of the Bilateral Aviation Safety Agreement Between the Federal Aviation Administration and Transport Canada Civil Aviation Authority for Pilot Licensing

This advisory circular (AC) provides the procedure and eligibility requirements for a Transport Canada Civil Aviation Authority (TCCA) pilot license holder converting to an Federal Aviation Administration (FAA) pilot certificate and an outline of the procedures and eligiblity requirments for an FAA pilot certificate holder converting to a TCCA pilot license.

Active AFS-800 2015-05-15
150/5370-10H Standard Specifications for Construction of Airports

The standard specifications contained in this advisory circular (AC) relate to materials and methods used for construction on airports. Items covered in this AC include general provisions, earthwork, flexible base courses, rigid base courses, flexible surface courses, rigid pavement, fencing, drainage, turf, and lighting installation.

Active AAS-100 2018-12-21
150/5345-28H Precision Approach Path Indicator (PAPI) Systems

Effective six months after the issue date of this AC, only that equipment qualified in accordance with the specifications herein will be listed in accordance with AC 150/5345-53, Airport Lighting Equipment Certification Program.

Active AAS-100 2019-07-29
20-62E Eligibility, Quality, & Identification of Aeronautical Replacement Parts

This advisory circular (AC) provides information and guidance for use in determining the quality, eligibility and traceability of aeronautical parts and materials intended for installation on U.S. type-certificated (TC) products and articles, and to enable compliance with the applicable regulations.

Active AFS-300 2018-09-14
90-48E Pilots’ Role in Collision Avoidance

This AC is issued to assist pilots with their regulatory obligation to see and avoid other aircraft. Specifically, this AC looks to alert pilots to human contributors to midair collisions and near midair collisions (NMAC), and recommend improvements to pilot education, operating practices, procedures, and improved scanning techniques to reduce midair conflicts.

Active AFS-800 2022-10-20
135-15 Emergency Medical Service/Airplane (EMS/A)

Provides information and guidance material which may be used by Air Ambulance and Emergency Medical Service/Airplane (EMS/A).

Active AFS-250 1990-11-19
90-117 Data Link Communications

This advisory circular (AC) applies to all pilots, certificate holders, operators, and/or program managers conducting data link communication operations and to those providing data communication services on behalf of operators to meet Federal Aviation Administration (FAA) and International Civil Aviation Organization (ICAO) requirements.

Active AFS-400 2017-10-03
20-127 Use of Society of Automotive Engineers (SAE) Class H11 Bolts

Provides guidance on the use of SAE Class H11 bolts in primary structure on all aircraft, including gliders and manned free balloons, and on aircraft engines and propellers.

Active ANM-110B 1987-07-08
20-109B Service Difficulty Reporting System (Air Operator/Air Agency/General Aviation/Unmanned Aircraft Systems)

This AC describes methods the Administrator prescribes per Title 14 of the Code of Federal Regulations (14 CFR) part 91, § 91.1415; part 125, § 125.409; and part 135, § 135.415; and accepts per part 121, § 121.703 and part 145, § 145.221 for reporting in-service product and article failures, malfunctions, and defects.

Active AFS-300 2023-11-01
20-77B Use of Manufacturers’ Maintenance Manuals

This advisory circular (AC) informs owners and operators about the usefulness of manufacturer’s maintenance manuals for servicing, repairing, and maintaining aircraft, engines, and propellers.

Active AFS-300 2016-01-04
43-9C Maintenance Records

Describes methods, procedures and practices determined to be acceptable for showing compliance with the general aviation maintenance record-making and record-keeping requirements of Title 14 of the Code of Federal Regulations (14 CFR) parts 43 and 91.

Active AFS-340 1998-06-08
90-109A Transition to Unfamiliar Aircraft

This advisory circular (AC) is intended to help plan the transition to any unfamiliar fixed-wing airplanes, including type-certificated (TC) and/or experimental airplanes. It provides information and guidance to owners and pilots of experimental, simple, complex, high-performance, and/or unfamiliar airplanes.

Active AFS-800 2015-06-29
120-88A Preventing Injuries Caused by Turbulence

This AC provides information and practices that can be used to prevent injuries caused by turbulence.

Active AFS-200 2006-01-19
133-1B Rotorcraft External-Load Operations

The information in this AC and related reading material will assist you in completing the application process in an efficient and accurate manner.

Active AFS-800 2017-05-31
20-37E Aircraft Propeller Maintenance

Provides information and suggested procedures to increase service life and to minimize blade failures of metal propellers.

Active AFS-350 2005-09-09
150/5210-19A Driver's Enhanced Vision System (DEVS)

Contains performance standards, specifications, and recommendations for DEVS equipment on Aircraft Rescue and Fire Fighting (ARFF) vehicles.

Active AAS-100 2009-06-12
00-46F Aviation Safety Reporting Program

NASA serves as a third party to receive and process Aviation Safety Reports. Examples of operations covered by the program include departure, en route, approach, and landing operations and procedures; air traffic control (ATC) procedures and equipment; crew and ATC communications; aircraft cabin operations; aircraft movement on the airport; near midair collisions (NMAC); aircraft maintenance and recordkeeping; airport conditions or services; and unmanned aircraft operations.

Active AFS-200 2021-04-02
120-91A Airport Obstacle Analysis

This AC describes acceptable methods and guidelines for developing takeoff and initial climbout airport obstacle analyses andin-flight procedures to comply with the intent of the regulatory requirements of Title 14 of the Code of Federal Regulations (14 CFR) part 121, §§ 121.177 and 121.189; part 135, §§ 135.367, 135.379, and 135.398; and other associated one-engine-inoperative (OEI) requirements relatingto turbine-engine-powered airplanes operated under parts 121 and 135.

Active AFS-400 2020-01-13
135-10C Approved Aircraft Inspection Program

The contents of this document do not have the force and effect of law and are not meant to bind the public in any way, and the document is intended only to provide information to the public regarding existing requirements under the law or agency policies.

Active AFS-300 2023-05-23
65-34A FAA-Approved Aircraft Dispatcher Certification Courses

Conformity with the guidance is voluntary only, and nonconformity will not affect rights and obligations under existing statutes and regulations.

Active AFS-200 2022-02-03
21-48 Using Electronic Modeling Systems as Primary Type Design Data

This AC provides information and guidance on developing procedures for using electronic modeling systems in design, manufacture, installation, and inspection processes.

Active AIR-100 2010-10-29
120-124 Continuous Airworthiness Maintenance Program (CAMP) Training Program

This AC explains the scope and detail the Federal Aviation Administration (FAA) expects of a Continuous Airworthiness Maintenance Program (CAMP) Training Program and offers a means (but not the only means) of compliance with Title 14 of the Code of Federal Regulations (14 CFR) part 91, § 91.1433; part 121, § 121.375; and part 135, § 135.433, the regulations requiring maintenance and preventive maintenance training programs.

Active AFS-300 2023-10-24
91-55A Reduction of Electrical System Failures Following Aircraft Engine Starting

The contents of this document do not have the force and effect of law and are not meant to bind the public in any way, and the document is intended only to provide information to the public regarding existing requirements under the law or agency policies.

Active AFS-300 2023-10-11
65-30B Overview of the Aviation Maintenance Profession

The contents of this document do not have the force and effect of law and are not meant to bind the public in any way, and the document is intended only to provide information to the public regarding existing requirements under the law or agency policies.

Active AFS-300 2023-05-23
150/5210-20A Ground Vehicle Operations to include Taxiing or Towing an Aircraft on Airports

This AC and its appendices provide guidance to airport operators about developing training programs for safe ground vehicle operations, personnel taxiing or towing an aircraft, and pedestrian control on the movement and safety areas of an airport.

Active AAS-300 2015-09-01
90-66C Non-Towered Airport Flight Operations

The contents of this document do not have the force and effect of law and are not meant to bind the public in any way, and the document is intended only to provide information to the public regarding existing requirements under the law or agency policies.

Active AFS-800 2023-06-06
150/5200-31C Airport Emergency Plan (Consolidated AC includes Change 2)

Provides guidance to the airport operator in the development and implementation of an Airport Emergency Plan (AEP). The AEP addresses essential emergency related and deliberate actions planned to ensure the safety of and emergency services for the airport populace and the community in which the airport is located.

Active AAS-300 2009-06-19
61-91J WINGS - Pilot Proficiency Programs

The FAA continually collects and assesses its databases to identify the risks associated with GA flying and incorporates risk mitigation strategies into initial and ongoing pilot education.

Active AFS-800 2011-02-16
150/5220-21C Aircraft Boarding Equipment

Contains the FAA's performance standards, specifications, and recommendations for the design, manufacture, testing and maintenance of equipment used in the boarding of airline passengers.

Active AAS-100 2012-06-29
21-25B Approval of Modified Seating System Initially Approved Under a Technical Standard Order

This advisory circular (AC) provides information, clarification, and procedural guidance for the approval and installation of modified technical standard order (TSO)approved seating systems in U.S. type-certificated aircraft.

Active AIR-100 2016-01-11
39-7D Airworthiness Directives

This advisory circular (AC) provides guidance and information to owners and operators of aircraft concerning their responsibility for complying with Airworthiness Directives (AD) and recording AD compliance in the appropriate maintenance records.

Active AFS-300 2012-03-02
20-148 Reusable Software Components

• Credit for the reuse of a software component in follow-on systems and certification projects, including “full credit” or “partial credit” for compliance to the objectives of RTCA/DO-178B, Software Considerations in Airborne Systems and Equipment Certification.

Active AIR-100 2004-12-07
61-138A Airline Transport Pilot Certification Training Program

The contents of this document do not have the force and effect of law and are not meant to bind the public in any way, and the document is intended only to provide information to the public regarding existing requirements under the law or agency policies.

Active AFS-200 2023-06-21
20-182A Airworthiness Approval for Aircraft Weather Radar Systems

The guidance is applicable to Title 14 of the Code of Federal Regulations, parts 23, 25, 27, and 29 aircraft. For forward-looking windshear and/or turbulence detection capability, the guidance in this AC applies to parts 25 and 23 fixed-wing airplane installations.

Active AIR-130 2016-10-01
120-108A Continuous Descent Final Approach

The contents of this document do not have the force and effect of law and are not meant to bind the public in any way, and the document is intended only to provide information to the public regarding existing requirements under the law or agency policies.

Active AFS-400 2023-03-22
00-71 Best Practices for Management of Open Problem Reports (OPRs)

Moreover, conformity with this guidance document (as distinct from existing statutes and regulations) is voluntary only, and nonconformity will not affect rights and obligations under statutes and regulations.

Active AIR-600 2022-09-16
91-61 A Hazard in Aerobatics: Effects of G-Forces of Pilots

Provides background information on G-forces, their effect on the human body and their role in safe flying, and offers suggestions for avoiding problems caused by acceleration encountered in aerobatic maneuvers.

Active AFS-800/AAM-500 1984-02-28
60-22 Aeronautical Decision Making

Provides introductory material, background information, and reference material on aeronautical decision making. Provides a systematic approach to risk assessment and stress management in aviation, illustrates how personal attitudes can influence decision

Active AFS-800 1991-12-13
120-103A Fatigue Risk Management Systems for Aviation Safety

(4) Provides (in Appendix 2, Fatigue Risk Management System Development) the certificate holder with the necessary detailed guidance to prepare for the FRMS approval process, develop the required documentation, develop and apply fatigue risk management (FRM) and Safety Assurance (SA) processes, collect and analyze data, develop flightcrew FRMS operations procedures and a step-by-step process required for Federal Aviation Administration (FAA) evaluation and validation of the proposed FRMS application.

Active AFS-220 2013-05-06
91-92 Pilot’s Guide to a Preflight Briefing

This AC provides an educational roadmap for the development and implementation of preflight self-briefings, including planning, weather interpretation, and risk identification/mitigation skills.

Active AFS-800 2021-03-15
20-71 Dual Locking Devices on Fasteners

Provides guidance and acceptable means, not the sole means, by which compliance may be shown with the requirements for dual locking devices on removable fasteners installed in rotorcraft and transport category airplanes.

Active AIR-120 1970-12-08
145-5 Repair Station Internal Evaluation Programs - with Change 1

Provides information and guidance material that may be used by repair station certificate holders, operating under FAR Part 145, to design and implement an Internal Evaluation Program.

Active AFS-350 1995-09-27
150/5100-19D Guide for Airport Financial Reports Filed by Airport Sponsors

Provides airport sponsors with guidance on filing FAA Form 5100-126, Financial Governmental Payment Report, and FAA Form 5100-127, Operating and Financial Summary. Announces changes to the FAA's financial reporting program and to Form 5100-127.

Active ACO-100 2011-06-23
20-107B Composite Aircraft Structure

Guidance information is also presented on the closely related design, manufacturing, and maintenance aspects. The information contained herein is for guidance purposes and is not mandatory or regulatory in nature.

Active AIR-100 2009-09-08
25.954-1 Transport Airplane Fuel System Lightning Protection

This advisory circular (AC) provides guidance for showing compliance with the airworthiness regulations for transport category airplanes regarding lightning protection of fuel tanks and systems. These lightning protection requirements apply to normal conditions and possible failures of fuel tank structure and systems that could lead to fuel tank explosions.

Active AIR-600 2018-09-24
120-96A Operations Control Center (OCC) for Helicopter Air Ambulance (HAA) Operations

This advisory circular (AC) provides information and recommendations to assist helicopter air ambulance (HAA) operators with the development, implementation, and integration of an Operations Control Center (OCC).

Active AFS-200 2016-01-07
150/5380-7B Airport Pavement Management Program (PMP)

This AC discusses the Airport Pavement Management Program (PMP) concept, its essential components, and how it is used to make cost-effective decisions about pavement maintenance and rehabilitation (M&R).

Active AAS-100 2014-10-10
25.1581-1 Airplane Flight Manual

Identifies the information that must be provided in Airplane Flight Manual (AFM) under the airworthiness regulations and provides guidance as to the form and content of the approved portion of an AFM.

Active ANM-110 1997-07-14
91-56B Continuing Structural Integrity Program for Airplanes

The procedures set forth by this AC are applicable to the large transport category airplanes operated under Subpart D of part 91, and parts 121 and 125.

Active ANM-115 2008-03-07
25-32 Landing Performance Data for Time-of-Arrival Landing Performance Assessments

This AC provides guidance and standardized methods that data providers, such as TC holders, STC holders, applicants, and airplane operators, can use when developing landing performance data for time-of-arrival landing performance assessments for transport category airplanes.

Active ANM-111 2015-12-22
23.629-1B Means of Compliance with Title 14 CFR, Part 23, § 23.629, Flutter

Presents information and guidance to provide one means, but not the only means, of complying with Section 23.629, Flutter (including flutter, airfoil divergence, and control reversal) of Part 23 of the Federal Aviation Regulations.

Active ACE-100 2004-09-28
20-189 Management of Open Problem Reports (OPRs)

Moreover, conformity with this guidance document (as distinct from existing statutes andregulations) is voluntary only, and nonconformity will not affect rights and obligations under statutes and regulations.

Active AIR-600 2022-09-16
00-68 Aircraft Certification Service Voluntary Disclosure Reporting Program

If you use the AC to voluntarily disclose noncompliance, the processes and requirements in this AC must be followed.

Active AIR-150 2016-10-01
120-115 Maintainer Fatigue Risk Management

Describes the basic concepts of human fatigue and how it relates to safety for aviation maintenance organizations and individual maintainers.

Active AFS-300 2016-12-02
91-81 Dual J80 Route Procedure

This advisory circular provides information to customers of the National Airspace System (NAS) in regards to the implementation and use of the dual J80 route procedure. The concept of the dual J80 route is to provide a near-term alternative for aircraft that normally file their flight on J80, westbound from New York and Philadelphia area airports.

Active AJR-1 2008-05-13
121-29B Carry-On Baggage

It updates, provides clarification and additional information on how to comply with the carry-on baggage regulations.

Active AFS-200 2000-07-24
150/5300-7B FAA Policy on Facility Relocations Occasioned by Airport Improvements or Changes

Reaffirms to the aviation community the FAA policy governing responsibility for funding relocation, replacement and modification of air traffic control and air navigation facilities that are made necessary by improvements or changes to the airport.

Active ABP-420 1972-11-08
170-9A Criteria for Assumption of Ownership of Non-Federal Systems

Theequipment/systems will become an FAA asset and the FAA will have the responsibility tooperate and maintain them.

Active AJW-121 2021-05-25
120-92B Safety Management Systems for Aviation Service Providers

An SMS is intended to be designed and developed by your own people and should be integrated into your existing operations and business decisionmaking processes.

Active AFS-900 2015-01-08
150/5100-21 State Block Grant Program

This AC provides guidance for application to and implementation of the State Block Grant Program (SBGP). It is intended for states and airport sponsors who participate, or plan to participate, in the SBGP.

Active APP-520 2016-10-31
91-84 Fractional Ownership Programs

This advisory circular (AC) provides backgroung information, and describes fractional ownership programs and te application process for obtaining management specifications (MSpecs) to operate under Title 14 of the Code of Federal Regulations (14CFR) part 91 subpart k (part 91K)

Active AFS-800 2009-03-31
25.994-1 Design Considerations to Protect Fuel Systems during a Wheels-Up Landing

This material is not mandatory and does not constitute a regulation.

Active ANM-110 1986-07-24
450.31-1 Applying for FAA Determination on Policy or Payload Reviews

Sections 450.31(a)(2) and (a)(3) require an applicant to obtain a policy approval from the Administrator in accordance with § 450.41 and a favorable payload determination from the Administrator in accordance with § 450.43.

Active AST-1 2023-08-10
129-3 Foreign Air Carrier Security

Provides information and guidance for the implementation of Change 7 to FAR Part 129 (sections 129.25, 129.26, and 129.27) which became effective 9/11/81.The sensitive nature of many security procedures precludes full discussion in this AC.

Active ACS-100 1982-06-10
33.19-1 Guidance Material for 14 CFR §33.19, Durability, for Reciprocating Engine Redesigned Parts

Like all AC material, this AC is not, in itself, mandatory and does not constitute a regulation. While these guidelines are not mandatory, they are derived from extensive Federal Aviation Administration (FAA) and industry experience in determining compliance with the pertinent regulations.

Active ANE-110 2004-09-27
20-155A Industry Documents To Support Aircraft Lightning Protection Certification

These industry documents provide guidance on aircraft lightning environment and test waveforms, aircraft lightning zoning, aircraft lightning test methods, and aircraft lightning direct effects.

Active AIR-130 2013-07-16
00-70 Flightcrew Member Certificate Verification Plan

An approved certificate verification plan allows part 91K program managers and part 119 certificate holders operating under parts 121 and 135 to provide a temporary verification document to flightcrew members whose airman or medical certificates have been lost, stolen, or destroyed, or are otherwise missing.

Active AFS-200 2018-12-19
43-218 Operational Authorization of Integrated Aircraft Health Management System

Conformity with the guidance is voluntary only and nonconformity will not affect rights and obligations under existing statutes and regulations.

Active AFS-300 2022-07-08
21.17-2A Type Certification-Fixed Wing Gliders (Sailplanes), Including Powered Gliders

Provides information and guidance concerning acceptable means of showing compliance with Section 21.17(b) of Part 21 of the Federal Aviation Regulations (FAR) for type certification of gliders and powered gliders.

Active ACE-100 1993-02-10
120-97A Incorporation of Fuel Tank System Instructions for Continued Airworthiness into Operator Maintenance or Inspection Programs (Including Change 1)

On May 7, 2001, the Transport Airplane Fuel Tank System Design Review, Flammability Reduction and Maintenance and Inspection Requirements final rule was published in the Federal Register (FR).

Active AFS-300 2012-05-25
43-208 Maintenance of Emergency Evacuations Systems for Aircraft Operating Under Part 121

Additionally, this AC discusses the responsibilities and means of compliance for the air carrier and persons performing maintenance.

Active AFS-300 2003-04-04
20-190 Aircraft Electromagnetic Compatibility Certification

This advisory circular (AC) identifies SAE Aerospace Recommended Practices (ARP) 60493, Guide to Civil Aircraft electromagnetic Compatibility (EMC), dated October 25, 2017, and European Organization For Civil Aviation Equipment (EUROCAE) ED-248, Guide to Civil Aircraft Electromagnetic Compatibility (EMC), dated January 22, 2018 as recommended practices for showing compliance pursuant to the following Title 14, Code of Federal Regulations (14 CFR):

  • § 23.2500
  • §§ 25.1309(a), 25.1309(e), 25.1353(a), and 25.1431(c)
  • §§ 27.1309(a), and Part 27 Appendix B
  • §§ 29.1309(a), 29.1309(g), 29.1353(a), and 29.1431(b)

Active AIR-600 2018-06-25
25-7D Flight Test Guide for Certification of Transport Category Airplanes

This AC includes flight test methods and procedures to show compliance with the regulations contained in title 14, Code of Federal Regulations (14 CFR) part 25, subpart B, “Flight,” which address airplane performance and handling characteristics.

Active AIR-600 2018-05-04
105-2E Sport Parachuting

It also contains information for jumpers and riggers on parachuting equipment, on-airport parachuting operations, jump pilot training, aircraft maintenance programs, parachute rigging, and procedures for Federal Aviation Administration (FAA) authorization for flight operations with a removed or modified door.

Active AFS-800 2013-12-04
20-42D Hand Fire Extinguishers for Use in Aircraft

This advisory circular (AC) gives you guidance for the fire-fighting effectiveness, selection and safe-use of hand fire extinguishers in airplanes and rotorcraft.

Active AIR-120 2011-01-14
150/5190-8 Minimum Standards for Commercial Aeronautical Activities

This AC provides basic information pertaining to FAA recommendations on commercial minimum standards and related policies. Although minimum standards are optional, the FAA highly recommends their use and implementation as a means to minimize the potential for violations of Federal obligations at federally obligated airports.

Active ACO-100 2023-12-07
43-15 Recommended Guidelines for Instrument Shops

Provides guidelines concerning environmental conditions for instrument repair and overhaul shops and information on calibration of test equipment.

Active AFS-350 1977-08-15
120-123 Flightpath Management

FPM is the planning, execution, and assurance of the guidance and control of aircraft trajectory and energy, in flight or on the ground.

Active AFS-200 2022-11-21
150/5325-4B Runway Length Requirements for Airport Design

Provides design standards and guidelines for determining recommended runway lengths.

Active APP-400 2005-07-01
91-65 Use of Shoulder Harness in Passenger Seats

Provides guidance and information to pilots, passengers, and maintenance personnel regarding the crash survivability aspects of small aircraft equipped with shoulder harnesses and the hazards of modifying seats, adding appendages to seats, and storage of articles, beneath the seats.

Active AFS-820 1986-08-04
23-23 Standardization Guide for Integrated Cockpits in Part 23 Airplanes

Guidance in AC 23.1311, SAE, and RTCA documents was used in developing the GAMA Publication #12.

Active ACE-100 2004-09-30
91-77 General Aviation, Coded Departure Routes (CDR)

CDRs provide more flexibility for selecting an alternate departure for specific airport when traffic constraint such as thunderstorms, turbulence, and periods of excessive demand exist. Use of a CDR reduces key-entry inputs for controllers and minimizes read-back time between tower staff and pilots, which creates an abbreviated clearance.

Active AJR-1 2007-06-01
65-32A Certification of Repairmen (Light-Sport Aircraft)

This advisory circular (AC) provides the public with information regarding the certification of repairmen (light-sport aircraft (LSA)) with maintenance and inspection ratings, the acceptability of training courses, and the continued airworthiness of LSA.

Active AFS-300 2013-02-08
25.1329-1C Approval of Flight Guidance Systems, Including Change 1

While part 25 contains the airworthiness standards applicable to transport category airplanes, the guidance in this AC pertains to the functions of autopilots, flight directors, and automatic thrust control as well as any interactions with stability augmentation and trim functions.

Active ANM-110 2014-10-27
91-88 Electronics News Gathering Operations

This AC was developed in consideration of ENG industry standards and recommended practices.

Active AFS-800 2016-06-28
135-17 Pilot Guide - Small Aircraft Ground Deicing (pocket)

Also contains information and guidance regarding deicing and anti-icing fluids and procedures for use and identifies the aircraft critical surfaces which must be free of contamination prior to takeoff.

Active AFS-250 1994-12-14
20-156 Aviation Databus Assurance

This advisory circular (AC) is for aircraft and aircraft engine manufacturers anddesigners. We provide a means to gain Federal Aviation Administration (FAA) approval of your aviation databus by showing the databus design performs its intended function and satisfies the applicable airworthiness requirements when installed on an aircraft or aircraft engine.

Active AIR-100 2006-08-04
33-2C General Type Certification Guidelines for Turbine Engines

This AC applies to certain sections of Title 14 of the Code of Federal Regulations (14 CFR) parts 21, 33, and 45, and describes or references methods of compliance that may be acceptable for engine type certification work.

Active ANE-111 2013-06-25
150/5300-14D Design of Aircraft Deicing Facilities

This AC provides standards and guidance for designing aircraft deicing facilities.

Active AAS-100 2020-03-17
437.55-1 Hazard Analysis for the Launch or Reentry of a Reusable Suborbital Rocket Under an Experimental Permit

Provide guidance for applying a systematic and logical hazard analysis to the identification, analysis, and control of public safety hazards and risks associated with the launch and reentry of a reusable suborbital rocket under an experimental permit.

Active AST-1 2007-04-20
43-217 Anticollision Light Maintenance (ACLM)

These locations tend to place the lights in extreme environmental conditions and subject to lightning strike and ground damage.

Active AFS-300 2018-12-12
91.21-1D Use of Portable Electronic Devices Aboard Aircraft

This AC provides aircraft owners, operators (i.e., certificate holders), and the flying public with information and guidance to comply with Title 14 of the Code of Federal Regulations (14 CFR) part 91, §91.21.

Active AFS-300 2017-10-27
210-5B Military Flying Activities

Provides information about military flying activities in the National Airspace System, describes the various types of routes and areas allocated for this purpose, and explains how information on the location and status of these routes and areas can be obtained.

Active ATM-400 1990-08-08
120-90 Line Operations Safety Audits

Provides the rationale and procedure for conducting an Line Operations Safety Audit (LOSA) at an airline.

Active AFS-230 2006-04-27
120-43 The Influence of Beards on Oxygen Mask Efficiency

Provides information about the effects of beards on masks in continuous flow and demand oxygen systems.

Active AFS-220 1987-01-27
150/5000-9B Guidelines for Sound Insulation of Structures Exposed to Aircraft Noise

This AC provides guidelines to develop and implement a sound insulation program (SIP).

Active APP-400 2022-06-08
25-11B Electronic Flight Displays

Revision B adds appendices F and G to the original AC and updates references to related rules and documents.

Active ANM-111 2014-10-07
120-45A Airplane Flight Training Device Qualification

Specifies the criteria to be used by the FAA when qualifying a device and determining what the qualification level should be.

Active AFS-205 1992-02-05
43-209A Recommended Inspection Procedures for Former Military Aircraft

This advisory circular (AC) is for the development of inspection program requirements for the certification of former military aircraft in the experimental category for the purpose(s) of exhibition and air racing that operate in the United States in accordance with Title 14 of the Federal Code of Regulations (14 CFR) part 21, § 21.191(d) and (e).

Active AFS-300 2013-04-12
20-183 Laser Airworthiness Installation Guidance

mounted, nonrequired, invisible spectrum laser equipment such as infrared surveillance laser and light detection and ranging (LIDAR) equipment. This AC is not mandatory and does not constitute a regulation.

Active AIR-130 2014-12-15
21-40A Guide for Obtaining a Supplemental Type Certificate

Intended as a certification guide and checklist for obtaining a Supplemental Type Certificate (STC). Title 14 of the Code of Federal Regulations (14 CFR) and Federal Aviation Administration (FAA) Directives (orders and notices) are the final authority and take precedence over this document.

Active AIR-600 2007-09-27
119-2A Operational Use of Radio Frequency Identification Systems Onboard Aircraft

This AC provides aircraft operator guidance on the use of radio frequency identification (RFID) devices and systems in operational and maintenance environments as a means of identifying or scheduling specific maintenance and inspection tasks in accordance with Title 14 of the Code of Federal Regulations (14 CFR) parts 43, 91, 121, 125, 129, and 135.

Active AFS-300 2021-08-23
00-64 Air Medical Resource Management

This AC provides guidance and information, which establish minimum guidelines for Air Medical Resource Management Training.

Active AFS-300 2005-09-22
150/5300-17C Standards for Using Remote Sensing Technologies in Airport Surveys (Consolidated to Include Change 1) Active AAS-100 2011-09-30
25.415-1 Ground Gust Conditions

Section 25.415 specifies the gust load conditions that are assumed to occur while the airplane is taxiing, and when parked. These load conditions apply to the flight control systems and surfaces.

Active ANM-115 2014-12-12
99-1E Emergency Security Control of Air Traffic (ESCAT)

This Advisory Circular (AC) provides the general public with a common use document thatdescribes the Plan for Emergency Security Control of Air Traffic (ESCAT), and its purposefor use by civil aviation. When emergency conditions prompt implementation of ESCAT,flights will be required to comply with any airspace and/or flight restrictions that may beissued in support of National Defense or Homeland Security initiatives.

Active AJR-2 2018-08-08
20-144A FAA Approval of Electrical Firing Cartridge Components in an Aircraft Fire Extinguishing or Suppression System

This advisory circular (AC) provides acceptable means for showing compliance with the requirements of title 14, Code of Federal Regulations (14 CFR) 23.1301, amendment 23-62 or earlier, 25.1301, 27.1301, and 29.1301 (herein, collectively, 2X.1301), Function and installation, with regard to fire extinguishing or suppression systems that contain electrical firing cartridge components.

Active AIR-600 2018-10-11
90-114B Automatic Dependent Surveillance-Broadcast Operations with Change 1

The intent of this AC is to facilitate operations using Automatic Dependent Surveillance-Broadcast (ADS-B) technology in compliance with Title 14 of the Code of Federal Regulations (14 CFR) part 91, §§ 91.225 and 91.227. The appendices provide guidance on additional ADS-B Out and ADS-B In operations that may be authorized by the Administrator.

Active AFS-400 2019-12-30
90-116 Additional Pilot Program for Phase I Flight Test

The APP was developed to improve safety by enhancing Builder/Owner Pilot (BP) skills and mitigate risks associated with Phase I flight testing of aircraft built from commercially produced kits through the use of a qualified additional pilot and powerplant testing.

Active AFS-800 2014-09-23
120-54A Advanced Qualification Program - (Change 1)

The AQP encourages innovation in the methods and technology that are used during instruction and evaluation, and efficient management of training systems.

Active AFS-280 2006-06-23
450.109-1 Flight Hazard Analysis

This advisory circular (AC) provides guidance for an operator to apply a systematic and logical hazard analysis to identify, analyze, and control public safety hazards and risks associated with flight, and phases of flight, for a launch or reentry vehicle (hereafter referred to as system) in accordance with § 450.109.

Active AST-1 2021-08-05
25.795-4 Passenger Cabin Smoke Protection

The means of compliance described in this document provides guidance to supplement the engineering and operational judgment that must form the basis of any compliance findings relative to penetration of smoke, fumes, and noxious gases into the passenger cabin.

Active ANM-100 2008-10-24
150/5220-24 Foreign Object Debris Detection Equipment

Contains minimum performance specifications for systems and equipment that detect foreign objects on airports, including stationary radar, stationary electro-optical, stationary hybrid radar and electro-optical, and mobile radar.

Active AAS-100 2009-09-30
150/5000-16 Announcement of Availability of the Guide for Private Flyers - U.S. International Airports

Announces the availability of the Guide for Private Flyers published by the Department of Homeland Security, U.S. Customs and Border Protection (CBP). The Guide lists all U.S. international airports, designated airports, landing rights airports, and user fee airports.

Active AAS-100 2010-09-29
21-45 Commercial Parts

This advisory circular (AC) explains how you can use the new provision in Title 14 of the Code of Federal Regulations (14 CFR) §§ 21.1(a)(3), 21.8, 21.9(a)(4), and 21.50(c) for commercial parts.

This AC is not mandatory and does not constitute a regulation.

Active AIR-100 2010-09-29
91-57C Exception for Limited Recreational Operations of Unmanned Aircraft

This AC provides guidance for operating UA under the exception, including operations for certain educational and research purposes; FAA recognition of community-based organizations (CBO); and application for fixed sites and CBO-sanctioned UA flying events.

Active AFS-800 2022-10-20
91-78A Use of Electronic Flight Bags

This AC provides operational guidance to aircraft owners, operators, and pilots operating aircraft under Title 14 of the
Code of Federal Regulations (14 CFR) part 91 who want to replace required paper information and/or utilize hosted database and software applications as part of Electronic Flight Bag (EFB) functionality.

Active AFS-800 2024-02-23
23-2A Flammability Tests

This advisory circular (AC) sets forth an acceptable means of showing compliance with Title 14 Code of Federal Regulations (14 CFR) part 23 and Civil Air Regulations (CAR) 3 for the flammability testing of systems and equipment in normal, utility, acrobatic, and commuter category airplanes and airships.

Active ACE-100 2007-05-11
61-83J Nationally Scheduled, FAA-Approved, Industry-Conducted Flight Instructor Refresher Course

In so doing, this AC clarifies TCO development standards, training standards, and testing standards, and provides recommendations to assist applicants to meet and adhere to these standards.

Active AFS-800 2018-09-13
33.15-2 Manufacturing Processes for Premium Quality Nickel Alloy for Engine Rotating Parts

This advisory circular (AC) provides information and guidance on compliance with the nickel materials suitability and durability requirements in part 33 of Title 14 of the Code of Federal Regulations (14 CFR part 33).

Active ANE-111 2011-02-04
70-2B REPORTING LASER ILLUMINATION OF AIRCRAFT

Specifically, this AC provides guidance to aircrews and reflects current guidance for air traffic control (ATC) on the formal reporting of laser illumination incidents.

Active AJR-2 2020-04-03
120-102A Incorporation of Electrical Wiring Interconnection Systems Instructions for Continued Airworthiness into an Operator’s Maintenance Program (Including Change 1)

The intent of the rule is to help ensure the continued safety of commercial airplanes by improving the design, installation, and maintenance of electrical wiring systems. Title 14 of the Code of Federal Regulations (14 CFR) part 121, § 121.1111, and part 129, § 129.111 include requirements for operators to revise their maintenance programs to include instructions for continued airworthiness (ICA), which include inspections and procedures for the electrical wiring interconnection systems (EWIS).

Active AFS-300 2012-09-12
23.607-1 Self-Locking Nuts on Bolts Subject to Rotation

Provides information and guidance concerning compliance with Part 23 for self-locking nuts used on bolts subject to rotation in operation.

Active ACE-111 1984-08-24
120-85B Carriage of Cargo

This AC provides operators with recommended procedures for managing cargo operations. Developing and using these comprehensive procedures is key to establishing a safe and efficient cargo operation.

Active AFS-200 2022-01-25
39-9 Airworthiness Directives Management Process

This advisory circular (AC) provides all aircraft operators with information and guidance for assistance in compliance to Title 14 of the Code of Federal Regulations (14 CFR) part 39, Airworthiness Directives.

Active AFS-330 2011-06-01
25-22 Certification of Transport Airplane Mechanical Systems

Provides methods acceptable to the Administrator for showing compliance with the type certification requirements for transport airplane mechanical systems and equipment installations.

Active ANM-112 2000-03-14
23.1311-1C Installation of Electronic Display in Part 23 Airplanes

The main purpose of this revision of the AC is providing the guidance for the requirements in the turbojet rulemaking and some general updating due to lessons learned and advance and emerging technologies.

Active ACE-100 2011-11-17
91-74B Pilot Guide: Flight In Icing Conditions

As a result of these updates and consolidating of information, AC 91-74A, Pilot Guide: Flight in Icing Conditions, dated December 31, 2007, and AC 91-51A, Effect of Icing on Aircraft Control and Airplane Deice and Anti-Ice Systems, dated July 19, 1996, are cancelled.

Active AFS-800 2015-10-08
91-69A Seaplane Safety for 14 CFR Part 91 Operators

Provides revised information to FAR Part 91 seaplane operators regarding seaplane preflight, oral briefings for seaplane passengers, the use of safety belts and shoulder harnesses in seaplanes, escape/egress after capsizing, water survival, and flotation gear for seaplane occupants.

Active AFS-800 1999-11-19
150/5200-32B Reporting Wildlife Aircraft Strikes

This AC explains the importance of reporting collisions between aircraft and wildlife, more commonly referred to as wildlife strikes. It also explains recent improvements in the FAA’s Bird/Other Wildlife Strike Reporting system, how to report a wildlife strike, what happens to the wildlife strike report data, how to access the FAA National Wildlife Strike Database (NWSD), and the FAA’s Feather Identification program.

Active AAS-300 2013-05-31
25-30 Fuel Tank Strength in Emergency Landing Conditions

Section 25.963(d) references §§ 25.561 and 25.721, which also address emergency landing conditions.

.

Active ANM-115 2014-10-07
21-21 Use of Automobile Gasoline in Agricultural Aircraft

Sets forth acceptable conditions under which automobile gasoline (autogas) may be used in restricted category agricultural aircraft powered by Pratt and Whitney R-985 and R-1340 radial engines, and being used in agricultural operations under Federal Aviation Regulations Part 137.

Active ACE-100 1984-08-24
43.9-1G Instructions for Completion of FAA Form 337

This AC provides instructions for completing Federal Aviation Administration (FAA) Form 337, Major Repair and Alteration (Airframe, Powerplant, Propeller, or Appliance).

Active AFS-300 2019-11-01
150/5200-18D Airport Safety Self-Inspection

This AC provides information to airport operators on airport self-inspection programs and identifies the items included in these programs.

Active AAS-300 2022-09-27
120-77A Performance Rules: Provisions Contained in an Operator Manual Under § 43.13(c)

The contents of this document do not have the force and effect of law and are not meant to bind the public in any way, and the document is intended only to provide information to the public regarding existing requirements under the law or agency policies.

Active AFS-300 2023-10-24
150/5395-1B Seaplane Bases

This AC provides guidance to assist operators in planning, designing, and constructing seaplane bases and associated facilities.

Active AAS-100 2018-08-31
121-43 Mentoring Training for Pilots in Command

This AC presents guidelines for developing and implementing mentoring training for pilots in command (PIC). These guidelines apply to air carriers, operators, and program managers conducting pilot training and qualification under Title 14 of the Code of Federal Regulations (14 CFR) part 121.

Active AFS-200 2020-03-03
20-40 Placards for Battery-Excited Alternators Installed in Light Aircraft

Sets forth an acceptable means of complying with placarding rules in Federal Aviation Regulations 23 and 27 with respect to battery excited alternator installations.

Active ACE-100 1965-08-11
90-93B Operating Procedures for Airport Traffic Control Towers (ATCT) that are not Operated by, or Under Contract with, the United States (Non-Federal)

This advisory circular (AC) recommends publications, administrative, and operational procedures that will assist in the management of a non-Federal ATCT (NFCT).

Active AJT-0 2013-04-22
150/5190-4B Airport Land Use Compatibility Planning

This AC is intended to help a broad audience understand the effects of land use on the safety and utility of airport operations and identify compatible land use development tools, resources and techniques to protect surrounding communities from adverse effects associated with airport operations.

Active APP-400 2022-09-16
135-45 Use of Noncertified Weather Observations in Noncontiguous States

This AC provides information and recommendations to air carriers operating under the authority of Title 14 of the Code of Federal Regulations (14 CFR) part 135 and in the noncontiguous States (i.e., Alaska or Hawaii) on the use of noncertified weather information in support of instrument approaches conducted under instrument flight rules (IFR) at airports without destination weather reporting approved by the National Weather Service (NWS) or the Federal Aviation Administration (FAA).

Active AFS-200 2020-10-06
25-15 Approval of Flight Management Systems in Transport Category Airplanes

Like all AC material, this AC is not mandatory and does not constitute a regulation. It is issued for guidance purposes and to outline a method of compliance with the rules.

Active ANM-111 1989-11-20
120-101 Part 121 Air Carrier Operational Control - Change 1

This advisory circular (AC) provides aviation safety inspectors (ASI) and air carrier management personnel with information to consider regarding certificate management and internal evaluation of operational control functions.

Active AFS-200 2010-06-28
25.803-1A Emergency Evacuation Demonstrations

scale emergency evacuation demonstrations, and (2) use of analysis and tests in lieu of conducting an actual demonstration.

Active ANM-115 2012-03-12
61-140A Autorotation Training

This information is intended to supplement information about autorotation training found in the current editions of the Helicopter Flying Handbook (HFH), FAA-H-8083-21, and the Helicopter Instructor’s Handbook (HIH), FAA-H-8083-4. This AC is not mandatory and does not constitute a regulation.

Active AFS-800 2016-08-31
150/5370-17 Airside Use of Heated Pavement Systems

Establishes minimum performance requirements for the design, construction, inspection, and maintenance of heated pavement systems for use in the Aircraft Operations Area (AOA).

Active AAS-100 2011-03-29
150/5360-13A Airport Terminal Planning

This AC provides information on the process of planning airport passenger terminal facilities. It combines and supersedes two previous FAA ACs on this topic: AC 150-5360-13, Planning and Design Guidelines for Airport Terminal Facilities, and AC 150/5360-9, Planning and Design Guidelines for Airport Terminal Facilities at Non-hub Locations.

Active APP-400 2018-07-13
150/5000-13A Announcement Of Availability: RTCA Inc., Document RTCA-221

Provides recommended minimum performance standards for airport surface movement sensors and specifies both sensor and system characteristics that provide guidance to airport systems designers, manufacturers, installers, and users of the equipment.

Active AAS-100 2008-09-05
150/5320-5D Airport Drainage Design

This AC provides guidance for engineers, airport managers, and the public about the design and construction of airport surface storm drainage systems; and subsurface drainage systems for paved runways, taxiways, and aprons.

Active AAS-100 2013-08-15
120-59B Internal Evaluation Programs

This AC provides information and guidance to persons operating under Title 14 of the Code of Federal Regulations (14 CFR) who are designing, developing, and implementing an Internal Evaluation Program (IEP).

Active AFS-200 2018-10-30
120-63 Helicopter Simulator Qualification

Provides a suggested means of compliance with the FAR regarding the evaluation and qualification of helicopter simulators to be used in training and checking

Active AFS-205 1994-10-11
120-12A Private Carriage Versus Common Carriage of Persons or Property

Furnishes FAA personal and interested segments of industry with general guidelines for determining whether current or proposed transportation operations by air constitute private or common carriage.

Active AFS-820 1986-04-24
450.179-1 Ground Safety

This Advisory Circular (AC) provides guidance and a comprehensive method for performing a ground safety analysis in accordance with title 14, Code of Federal Regulations (14 CFR) §§ 450.179, 450.181, 450.183, 450.185, and 450.189.

Active AST-1 2021-09-22
150/5220-23A Frangible Connections

This advisory circular contains standards and guidelines for the frangible connections used to support objects located in airfield safety areas and object free areas.

Active AAS-100 2021-04-13
25.341-1 Dynamic Gust Loads

This advisory circular (AC) describes acceptable means for showing compliance with the requirements of Title 14, Code of Federal Regulations (14 CFR) 25.341, Gust and turbulence loads. Section 25.341 specifies the discrete gust and continuous turbulence dynamic load conditions that apply to the airplane and engines.

Active ANM-115 2014-12-12
61-107B Aircraft Operations at Altitudes Above 25,000 Feet Mean Sea Level or Mach Numbers Greater Than .75/ with Change 1

It also provides information to aid pilots in becoming familiar with the basic phenomena associated with high-altitude and high-speed flight.

Title 14 of the Code of Federal Regulations (14 CFR) part 61 prescribes the knowledge and skill requirements for the various airman certificates and ratings, including category, class, and type ratings authorized to be placed thereon.

Active AFS-800 2013-03-29
25.856-1 Thermal/Acoustic Insulation Flame Propagation Test Method Details

Guidance applies to airplanes required to conform with 25.856, and part VI of appendix F to Title 14 Code of Federal Regulations (14 CFR) part 25.

Active ANM-115 2005-06-24
90-102A Airspace Flow Program

This Advisory Circular replaces AC 90-102 and provides guidance to customers of the National Airspace System (NAS) regarding changes to the traffic management process for managing flights through a constrained area with an Airspace Flow Program (AFP).

Active AJR-1 2008-05-30
145-2 Repair Station Limited Ratings Beech 18 Series Aircraft

Advises of a required limited repair station rating to perform X-ray inspection of the Beech 18 wing and center section spar, and of the procedures for application.

Active AFS-340 1976-04-21
150/5390-2D Heliport Design

This AC provides standards for the planning, design and construction of heliports serving helicopters with single, tandem (front and rear) or dual (side by side) rotors.

Active AAS-100 2023-01-05
150/5210-24A Airport Foreign Object Debris (FOD) Management

This AC provides guidance for developing and managing an airport foreign object debris (FOD) program and specifications for the equipment used in FOD removal operations.

Active AAS-300 2024-02-08
20-106 Aircraft Inspection for the General Aviation Aircraft Owner

Designed to familiarize owner, pilots, student mechanics, and others with inspection procedures, it does NOT qualify an individual to make airworthiness determinations.

Active AFS-340 1978-04-01
120-89 Ground Deicing Using Infrared Energy

Provides guidelines and recommendation for deicing aircraft with infrared technology. Also provides means for obtaining approval for the use & inclusion of infrared technology in an operators deicing program.

Active AFS-220 2005-12-13
120-64 Operational Use & Modification of Electronic Checklists

Provides an acceptable means, but not the only means, to address the processes for approval, operational use, and modification of electronic checklists (ECL) and ECL data by air carriers.

Active AFS-200N 1996-04-24
150/5340-18G Standards for Airport Sign Systems

This AC contains the FAA standards for the siting and installation of signs on airport runways and taxiways. Consolidated to include Change 1, dated December 23, 2020.

Active AAS-100 2019-05-10
150/5200-12C First Responders’ Responsibility for Protecting Evidence at the Scene of an Aircraft Accident/Incident

Furnishes general guidance for airport employees, airport management, and other personnel responsible for aircraft rescue and firefighting (ARFF) operations at the scene of an aircraft accident on the proper preservation of evidence.

Active AAS-300 2009-09-28
21-54 Experimental Airworthiness Certification of Certain Former Military Aircraft

This advisory circular (AC) provides information and guidance concerning special airworthiness certification in the experimental category of certain former military aircraft under Title 14 of the Code of Federal Regulations (14 CFR) part 21, Certification Procedures for Products and Parts, §§ 21.191(a), (c), (d), (e); and 21.193.

Active AIR-110 2015-02-15
150/5200-28G Notice to Air Missions (NOTAMs) for Airport Operators

This AC contains standards and guidance for airport operators on the issuance of Notice to Air Missions (NOTAM).

Active AAS-300 2022-05-25
00-61 Event Planning Guide

It is not limited to sporting events, but can be used whenever there is a large amount of aviation activity on an infrequent basis and open gatherings of people. The goal of this AC is to enhance air and ground safety.

Active AFS-800 2000-07-24
61-139 Institution of Higher Education’s Application for Authority to Certify its Graduates for an Airline Transport Pilot Certificate with Reduced Aeronautical Experience

The total flight time requirements for a restricted privileges ATP Certificate based on a degree with an aviation major are:


• 1,000 hours for a graduate who holds a bachelor’s degree with an aviation major and meets the remaining requirements of § 61.160(b);

• 1,250 hours for a graduate who holds an associate’s degree with an aviation major and meets the remaining requirements of § 61.160(c); and

• 1,250 hours for a graduate who holds a bachelor’s

Active AFS-800 2013-07-12
91-90 Part 91 Approved Inspection Programs

This advisory circular (AC) prescribes the procedures to develop and submit aircraft owner- and operator-specific inspection programs in accordance with an inspection program selected under the provisions of Title 14 of the Code of Federal Regulations (14 CFR) part 91, § 91.409(f)(4), and satisfies the requirements of § 91.409(g) for review and approval by the Federal Aviation Administration (FAA).

Active AFS-300 2017-04-05
90-95 Unanticipated Right Yaw in Helicopters

Examines the unanticipated right yaw phenomenon, the circumstances under which it may be encountered, how it can be prevented, and how the pilot should react if it is encountered.

Active AFS-800 1995-02-07
21-37 Primary Category Aircraft

Provides guidance for complying with Part 21 of Subchapter C, Chapter 1, Title 14 of the Code of Federal Regulations (CFR), which contains the certification procedures for products and parts.

Active AIR-110 1994-06-14
120-113 Best Practices for Engine Time In Service Interval Extensions - Change 1

The AC explains the background of engine time in service intervals as well as the Federal Aviation Administration’s (FAA) regulatory requirements for time limitations and time in service intervals for engine overhauls. The AC also provides aircraft operators with information on the best practices for an engine time in service interval extension program and how to obtain an engine time in service interval extension.

Active AFS-300 2016-01-06
150/5360-14A Access to Airports by Individuals with Disabilities

This AC assist airports in complying with the laws and regulations regarding individuals with disabilities by: (1) identifying the relevant statutes and regulations affecting airports; (2) presenting the main features of each of the statutes and regulations; and (3) listing sources of assistance or additional information.

Active AAS-100 2017-12-06
20-100 General Guidelines for Measuring Fire-Extinguishing Agent Concentrations in Powerplant Compartments

Describes the installation and use of a model GA-2A fire extinguisher agent concentration recorder in determining the distribution and concentration of fire-extinguishing agents when discharged in an aircraft powerplant compartment.

Active AIR-120 1977-09-21
135.169-1 Small Propeller-Driven Air Taxi Airplanes that meet Sections 135.169 (formerly 135.144)

Provides a summary of and information on small propeller-driven air taxi airplanes that comply with section 135.169(b) and may continue operations under FAR 135 with ten or more passenger seats.

Active AIR-110 1979-09-24
25.629-1B Aeroelastic Stability Substantiation of Transport Category Airplanes

However, some general information is included, with supporting discussions, for consideration when demonstrating compliance with§ 25.629 and related regulations. Revision B incorporates changes only to the portions of this AC affected by the Airplane and Engine Certification Requirements in Supercooled Large Drop, Mixed Phase, and Ice Crystal Icing Conditions final ru

Active ANM-115 2014-10-27
120-121 Safety Risk Management Involving Items in Aircraft Cargo Compartments

Conformity with this guidance document is voluntary only and nonconformity will not affect rights and obligations under existing statutes and regulations.

Active AFS-200 2021-09-01
21-41A Replacing MIL-S-8879C With SAE AS8879

Provides information, clarification, and procedural guidance concerning the Inactivation of MIL-S-8879Cm Screw Threads, Controlled Radius Root with Increased Minor Diameter, as it relates to the civil aviation industry.

Active AIR-110 2003-06-20
150/5210-18A Systems for Interactive Training Of Airport Personnel

Provides guidance in the design of systems for interactive training of airport personnel, which are eligible for funding under the Airport Improvement Program (AIP) and with Passenger Facility Charge (PFC) revenues.

Active AAS-100 2008-09-29
21-34 Shoulder Harness-Safety Belt Installations

Provides information and guidance pertinent to an acceptable means, but not the only means, for installation of shoulder harness and safety belt restraint systems at all seat locations on all previously type-certificated aircraft.

Active AIR-120 1993-06-04
25.981-2A Fuel Tank Flammability

This guidance is applicable to transport category airplanes for which a new, amended, or supplemental type certificate is requested, and for which Amendment 25-125 applies. It is also applicable to certain existing design approval holders and certain pending applications for new type certificates, supplemental type certificates and amended type certificates where required by §§ 26.33, 26.35, 26.37, and 26.39, contained in a subpart D to Title 14, Code of Federal Regulations (CFR) part 26, “Fuel Tank Flammability.”

Active ANM-112 2008-09-19
150/5300-13B Airport Design

Contains the Federal Aviation Administration’s (FAA) standards and recommendations for the geometric layout and engineering design of runways, taxiways, aprons, and other facilities at civil airports.

Active AAS-100 2022-03-31
43-10C United States—Canadian Bilateral Aviation Safety Agreement Maintenance Implementation Procedures

This advisory circular (AC) provides information relating to the Bilateral Aviation Safety Agreement (BASA) and accompanying Maintenance Implementation Procedures (MIP) between the United States and Canada.

Active AFS-300 2011-04-23
450.141-1A Computing System Safety

It is intended to provide guidance for an applicant in developing software and computing system safety analyses and processes to comply with § 450.141.

Active AST-1 2021-08-16
43-18 Fabrication of Aircraft parts by Maintenance Personnel

This AC provides one means of complying with the requirements of Title 14 of the Code of Federal Regulations (14 CFR) parts 21 and 43 for the design and fabrication of parts by persons performing maintenance and alterations using methods, techniques, and practices acceptable to the Administrator.

Active AFS-300 2006-03-24
33-9 Developing Data for Major Repairs of Turbine Engine Parts

This advisory circular (AC) provides information and guidance on developing the technical data needed for major repairs of critical and complex turbine engine parts.

Active AIR-600 2010-04-30
20-125 Water in Aviation Fuels

Additionally, it outlines recommended procedures to prevent, detect, and eliminate water in the fuel systems of aircraft.

Active AFS-340 1997-08-12
121-34B Emergency Medical Equipment Training

Provides guidance regarding crewmember training programs (Flight attendant training program in particular) that incorporate Automated External Defibrillators (AED) and enhanced Emergency Medical Kits (EMK). (Also AC 121-33B, Emergency Medical Equipment).

Active AFS-220 2006-01-12
20-165B Airworthiness Approval of Automatic Dependent Surveillance - Broadcast OUT Systems

This advisory circular (AC) provides guidance for the installation and airworthiness approval of Automatic Dependent Surveillance - Broadcast (ADS-B) OUT systems in aircraft.

Active AIR-130 2015-12-07
121-35 Management of Passengers during Ground Operations without Cabin Ventilation

Provides guidance regarding air carrier procedures for the use of ventilation and ground based air conditioning on the ground, as well as management of passengers during ground operations with no cabin ventilation.

Active AFS-200 2003-01-16
136-2 Recommended Aircraft Maintenance Practices for Commercial Air Tour Operators - Change 1 Included

The recommended practices in this AC aren’t mandatory and don’t constitute a regulation. However, we believe that when properly followed, these practices can increase safety in your operation and reduce the number of maintenance-related air tour accidents.

Active AFS-300 2014-01-22
20-186 Airworthiness Operational Approval of Cockpit Voice Recorder Systems

This advisory circular (AC) provides guidance for compliance with applicable regulations for the airworthiness and operational approval for required cockpit voice recorder (CVR) systems.

Active AFS-300 2016-07-21
91-67A Minimum Equipment Requirements for General Aviation Operations Under 14 CFR Part 91, § 91.213

This AC describes acceptable ways in which an aircraft can be operated under Title 14 of the Code of Federal Regulations (14 CFR) part 91, 133, or 137 (including part 91 operations conducted by parts 141 and 142 certificate holders (CH)) with certain inoperative instruments and equipment items that are not essential for safe operations, in accordance with part 91, § 91.213.

Active AFS-800 2023-10-16
91-58A Uus of Pyrotechnic isual Distress Signaling Devices

This advisory circular (AC) suggests standards and procedures for the acquisition, use, and storage of pyrotechnic visual distress signaling devices that are intended for use in aircraft emergencies.

Active AFS-820 2000-02-10
33.70-2 Damage Tolerance of Hole Features in High-Energy Turbine

Section 33.70 contains requirements applicable to the design and life management of propulsion system life-limited parts, including high-energy rotating parts.

Active AIR-600 2009-08-28
91-82A Fatigue Management Programs for In-Service Issues

56B, Continuing Structural Integrity Program for Airplanes, AC 25.571?1D, Damage Tolerance and Fatigue Evaluation of Structure, and AC 23?13A, Fatigue, Fail-Safe, and Damage-Tolerance Evaluation of Metallic Structure for Normal, Utility, Acrobatic, and Commuter Category Airplanes.

Active ACE-100 2011-08-23
20-166A Issue Paper Process

This advisory circular (AC) provides information on the use of issue papers and gives you guidance on your role in describing and tracking the resolution of significant technical, regulatory, and administrative issues derived from the issue paper process.

Active AIR-110 2014-11-06
120-82 Flight Operational Quality Assurance

Provides guidance on one means, but not necessarily the only means, of developing, implementing, and operating a voluntary Flight Operational Quality Assurance (FOQA) program that is acceptable to the Federal Aviation Administration (FAA).

Active AFS-230 2004-04-12
35.4-1 Propeller Instructions for Continued Airworthiness

Provides guidance and acceptable methods, but not the only methods, for demonstrating compliance with 14 CFR §35.4, Instructions for Continued Airworthiness.

Active ANE-110 2003-11-03
90-113C Instrument Flight Procedure Validation (IFPV of Performance Based Navigation (PBN) Instrument Flight Procedures (IFP)

This AC describes ground validation, pre-flight validation (including simulator evaluation and obstacle assessment), and flight validation.
The contents of this document do not have the force and effect of law and are not meant to bind the public in any way.

Active AFS-400 2023-07-06
120-100 Basics of Aviation Fatigue

Summarizes the content of the FAA international symposium on fatigue, “Aviation Fatigue Management Symposium: Partnerships for Solutions”, June 17-19, 2008; Describes fundamental concepts of human cognitive fatigue and how it relates to safe Provides information on conditions that contribute to cognitive fatigue; and fatigue and/or mitigate the effects of fatigue.

Active AFS-200 2010-06-07
25-29 Development of a Nondestructive Inspection Program/Organization

This advisory circular (AC) provides guidance for the development of organizations and facilities performing nondestructive inspections (NDI). This material is neither mandatory nor regulatory in nature and does not constitute a regulation.

Active AFS-300 2013-09-20
120-17B Reliability Program Methods—Standards for Determining Time Limitations

When accepted by the Federal Aviation Administration (FAA) and after receiving authorization for its use by operations specifications (OpSpecs), your reliability program gives you the authority and the means to adjust your maintenance schedule tasks and intervals without prior approval or acceptance by the FAA.

Active AFS-300 2018-12-19
20-175 Controls for Flight Deck Systems

This AC addresses traditional dedicated controls such as physical switches and knobs, as well as multifunction controls such as touch screens and cursor control devices.

Active AIR-120 2011-12-08
120-72A Maintenance Human Factors Training

1.Provides descriptions of references and training materials to ensure that thereader can assemble a Maintenance Human Factors (MxHF) training programmatched to the applicable needs of their specific organization. 2.Provides many sources of current information to develop, implement,reinforce, and assess MxHF training materials. 3.Streamlines MxHF training development at the local level. 4.Is not mandatory, like any AC, and does not constitute a regulation

Active AFS-300 2017-04-11
25-18 Transport Category Airplanes Modified for Cargo Service

Provides guidance for demonstrating compliance with the FAR pertaining to transport category airplanes converted for use in all-cargo or combination passenger/cargo (combi) service and the relationship of those regulations to the requirements of Parts 121and 135 of the FAR.

Active ANM-114 1994-01-06
23-14 Type Certification Basis for Conversion from Reciprocating Engine to Turbine-Powered Part 23 Airplanes

Provides information and guidance concerning an acceptable means of showing compliance with Part 23 through amdt.23-45 of the Federal Aviation Regulations applicable to replacing reciprocating engines with gas turbine engines (turbopropeller, turbojet, or turbofan).

Active ACE-100 1993-09-30
150/5210-22 Airport Certification Manual (ACM)

This AC cancels AC 139/201-1, Airport Certification Manual (ACM) and Airport Certification Specifications (ACS).

Active AAS-300 2004-04-26
91-80 Air Traffic Control System Command Center (ATCSCC) Hotlines

This advisory circular provides guidance to customers of the National Airspace System (NAS) in regard to the use of and participation on ATCSCC hotlines.

Active AJR-1 2008-06-24
91-72 Waivers of Provisions of Title 14 of the Code of Federal Regulations Part 91

The contents of this document do not have the force and effect of law and are not meant to bind the public in any way, and the document is intended only to provide information to the public regarding existing requirements under the law or agency policies.

Active AFS-800 1996-11-08
150/5070-6B Airport Master Plans

Consolidated file contains Changes 1 and 2.

Active APP-400 2005-07-29
25-31 Takeoff Performance Data for Operations on Contaminated Runways

This AC also promotes the use of consistent terminology for runway surface conditions used among data providers and FAA personnel.

Active ANM-111 2015-12-22
91-37B Truth in Leasing

This advisory circular (AC) provides information and guidance for lessees and conditional buyers of U.S.-registered aircraft.

Active AFS-800 2016-02-10
25.795-6 Least Risk Bomb Location

This section requires that a location on the airplane be designed where an explosive or incendiary device may be placed to protect flight critical structures and systems from damage in case of detonation. The means of compliance described in this document provide guidance to supplement the engineering and operational judgment that must form the basis of any compliance findings relative to the design of a Least Risk Bomb Location on an airplane.

Active ANM-100 2008-10-24
20-150B Airworthiness Approval of Satellite Voice (SATVOICE) Equipment Supporting Air Traffic Service (ATS) Communication

This advisory circular (AC) provides guidance on airworthiness approval for designers, manufacturers, and installers of Satellite Voice (SATVOICE) equipment supporting air traffic service (ATS).

Active AIR-130 2014-12-23
20-152A Development Assurance for Airborne Electronic Hardware


The additional guidance and clarification are provided in the form of objectives. The applicant is expected to describe the process and activities to satisfy the objectives of this AC.

Active AIR-600 2022-10-07
90-23G Aircraft Wake Turbulence

This advisory circular (AC) presents basic information on wake vortex behavior, alerts pilots to the hazards of aircraft wake turbulence, and recommends operational procedures to avoid wake turbulence encounters.

Active AFS-400 2014-02-10
23-19A Airframe Guide for Certification of Part 23 Airplanes

Provides information and guidance concerning acceptable means, but not the only means, of complying with Title 14 of the Code of Federal Regulations (14 CFR) part 23 Subpart C and portions of Subpart D.

Active ACE-100 2007-04-30
20-193 Use of Multi-Core Processors

The contents of the document do not have the force and effect of law and are not meant to bind the public in any way. The document is intended only to provide information to the public regarding existing requirements under the law or agency policies.

Active AIR-622 2024-01-08
8260-32F United States Air Force Terminal Instrument Procedures Service

This order provides guidance to all personnel in the administration of the Flight Procedures and Airspace Program. It defines responsibilities regarding terminal instrument procedure development and maintenance service provided by the FAA for the USAF at domestic civil airports under Department of Transportation (DOT), FAA, Department of Defense (DoD), and USAF Memorandum of Agreement effective July 7, 1978.

Active AFS-300 2018-12-14
65-24 Certification of a Repairman (General)

This advisory circular (AC) provides information and guidance to the aviation p.1blic on the procedures for certification of a repairman.

Active AFS-350 1983-02-01
150/5050-4A Community Involvement in Airport Planning

It describes changes in standards and expectations for community involvement in airport planning since FAA drafted the previous version of this AC.

Active APP-400 2019-10-28
25.975-1 Fuel Vent Fire Protection

This advisory circular (AC) provides information and guidance concerning compliance with Federal Aviation Administration (FAA) requirements in Title 14, Code of Regulations (14 CFR) 25.975(a)(7) and related regulations for preventing fuel tank explosions caused by ignition of vapors outside the fuel tank vents.

Active ANM-112 2016-06-24
25.869-1A Fire Protection: Systems

This advisory circular (AC) provides guidance for demonstrating compliance with the transport category airplane certification requirements of § 25.863 Flammable fluid fire protection (as applicable to electrical system components) and § 25.869 Fire protection: systems.

Active ANM-100 2007-10-22
20-149B Installation Guidance for Domestic Flight Information Service- Broadcast

In this AC, the Federal Aviation Administration (FAA) recommends one way to gain airworthiness approval for the installation of FIS-B avionics equipment. We identify safety and installation requirements for continued airworthiness of aircraft FIS-B avionics equipment, systems, and applications.

Active AIR-100 2015-12-21
43-216A Software Management During Aircraft Maintenance

The contents of this document do not have the force and effect of law and are not meant to bind the public in any way, and the document is intended only to provide information to the public regarding existing requirements under the law or agency policies.

Active AFS-300 2023-08-25
25.1701-1 Certification of Electrical Wiring Interconnection Systems on Transport Category Airplanes

This Advisory Circular (AC) provides guidance for certification of electrical wiring interconnection systems (EWIS) on transport category airplanes in accordance with 14 CFR part 25, subpart H, sections §§25.1701 through 25.1739 and sections H25.4 and H25.5 of Appendix H to part 25.

Active ANM-100 2007-12-04
23-9 [Large AC] Evaluation of Flight Loads on Small Airlpanes with T, V, +, or Y Empennage Configurations

Provides information and guidance concerning compliance with Part 23 of the Federal Aviation Regulations (FAR) applicable to evaluation of empennage design flight loads on configurations where the horizontal tail surfaces are supported by the vertical tail, or have appreciable dihedral.

Active ACE-100 1988-01-27
120-40B Airplane Simulator Qualification

Provides an acceptable means, but not the only means, of compliance with the Federal Aviation Regulations (FAR) regarding the evaluation of and qualification of airplane simulators used in training programs or airmen checking under Title 14 Code of Federal Regulations (CFR).

Active AFS-205 1991-07-29
20-173 Installation of Electronic Flight Bag Components

The terms “should” and “recommend” are used when following the guidance is recommended but not required to comply with this AC.

Active AIR-130 2011-09-27
21-55 Process to Support FAA Findings of Undue Burden or No Undue Burden for PAHs Requesting to Use a Manufacturing Facility Located Outside of the United States

This AC provides information for PAHs in accordance with the regulations cited in Title 14 of the Code of Federal Regulations (14 CFR) part 21, Certification Procedures for Products and Articles. For the purposes of this AC, manufacturing facilities includes production certificate (PC) extensions, associate facilities, and suppliers located outside the United States.

Active AIR-100 2016-08-01
65-25F William (Bill) O’Brien Aviation Maintenance Technician Awards Program

This revision addresses changes to the Awards Program Awards Program and provides instructions for AMTs and the employers of AMTs participating in the online Awards Program.

Active AFS-300 2016-08-18
25-19A Certification Maintenance Requirements

This advisory circular (AC) provides guidance on the selection, documentation, and control of Certification Maintenance Requirements (CMR). This AC also provides a rational basis for coordinating the Maintenance Review Board (MRB), if the MRB process is used, and CMR selection processes to ensure premises made in the system safety analyses supporting the compliance with the requirements of Title 14, Code of Federal Regulations (14 CFR) 25.1309, and other system safety rules (such as §§ 25.671, 25.783, 25.901, and 25.933) are protected in service.

Active ANM-117 2011-10-03
150/5370-2G Operational Safety on Airports During Construction

This version adds notification about impacts to both airport-owned and FAA-owned NAVAIDs; adds guidance for the use of orange construction signs (including a new appendix on the placement of these signs); discusses open trenches or excavations in the taxiway safety area while the taxiway is open to aircraft operations, subject to restrictions; enhances guidance for temporary shortened runways and displaced thresholds; and improves figures.

Active AAS-100 2017-12-13
135-44 Part 135 Operator Aircraft Configuration Inspection

This AC provides information concerning the placement of aircraft into service for Title 14 of the Code of Federal Regulations (14 CFR) part 135 commuter and on demand operations. This AC is not mandatory and does not constitute a regulation.

Active AFS-300 2018-09-25
43-4B Corrosion Control for Aircraft

This advisory circular (AC) is a summary of the current available data regarding identification and treatment of corrosive attack on aircraft structures and engine materials.

Active AFS-300 2018-09-11
450.101-1A High Consequence Event Protection

This AC provides an acceptable means to demonstrate compliance with §450.101( c)(2) and § 45 0.101(c)(3) and provides an acceptable means of compliance with conditional expected casualties requirements in § 450.108.

Active AST-1 2021-05-20
150/5370-13A Off-Peak Construction of Airport Pavements Using Hot-Mix Asphalt

Provides guidance for the planning, coordination, management, design, testing, inspection, and execution of off-peak construction of airport pavements using hot-mix asphalt (HMA) paving materials.

Active AAS-100 2006-09-29
20-181 Airworthiness Approval of Attitude Heading Reference System (AHRS) Equipment

TSO-C201 includes performance standards for non-gimbaled attitude, heading, and turn and slip systems.

Active AIR-130 2014-04-07
120-58 Pilot Guide Large Aircraft Ground Deicing

Contains recommendations for ensuring safe operations of large airplanes during icing conditions and guidelines for the development of adequate procedures for the deicing of large airplanes.

Active AFS-200 1992-09-30
91-89 Mitsubishi MU-2B Training Program

This AC provides guidance and standardized methods for meeting the training requirements outlined in Title 14 of the Code of Federal Regulations (14 CFR) Part 91 Subpart N, Mitsubishi MU-2B Series Special Training, Experience, and Operating Requirements, for Mitsubishi MU-2B aircraft.

Active AFS-800 2016-07-22
91-91 Maintaining Public Aircraft

The AC describes methods for maintaining aircraft in order to maximize both a safety and economic benefit.

Active AFS-300 2016-10-19
91-76A Hazard Associated with Sublimation of Solid Carbon Dioxide (Dry Ice) Aboard Aircraft

This AC discusses the potential hazard associated with the sublimation of dry ice aboard aircraft. Precautionary measures and simple rules of thumb are indicated in order to preclude environmentally hazardous conditions affecting crews and passengers aboard aircraft.

Active AAM-630 2009-05-22
150/5200-37A Safety Management Systems for Airports

This AC presents the concepts of a Safety Management System (SMS) and provides detailed guidance about developing and implementing SMS for an airport.

Active AAS-300 2023-02-16
35-1A Certification of Propellers

This advisory circular (AC) provides guidance and describes acceptable methods, but not the only methods, that may be used to demonstrate compliance with provisions of the requirements of part 35 of Title 14 of the Code of Federal Regulations (14 CFR part 35).

Active AIR-600 2018-10-11
150/5200-33C Hazardous Wildlife Attractants on or near Airports

It also discusses airport development projects (including airport construction, expansion, and renovation) affecting aircraft movement near hazardous wildlife attractants.

Active AAS-300 2020-02-21
135-14B Helicopter Air Ambulance Operations

To address an increase in fatal HAA accidents, the FAA has implemented new operational procedures and additional equipment requirements for HAA operations. The FAA, HAA operators and medical community all play vital roles in applying these changes to ensure safety.

Active AFS-200 2015-03-26
61-134 General Aviation Controlled Flight into Terrain Awareness

This AC includes the Federal Aviation Administration's (FAA) common definition of the term CFIT, identifies some, but not all, of the risks associated with GA CFIT accidents, and provides some recommendations and strategies to combat CFIT within the GA community.

Active AFS-800 2003-04-01
150/5370-12B Quality Management for Federally Funded Airport Construction Projects

This advisory circular (AC) provides information on the planning and oversight of construction projects at airports accomplished under the FAA's Airport Improvement Program (AIP).

Active AAS-100 2015-09-14
121-37B Voluntary Disclosure Reporting Program - Hazardous Materials

This advisory circular (AC) provides guidance to holders of certificates under Title 14 of the Code of Federal Regulations (CFR) parts 119 and 125, and foreign air carriers issued operations specifications under 14 CFR part 129 (operators), and part 145 (repair stations) who voluntarily disclose to the Federal Aviation Administration (FAA) their violation(s) of certain hazardous materials regulations under this voluntary disclosure reporting program (VDRP).

Active AXH-1 2023-10-25
36-3H Estimated Airplane Noise Levels in A-Weighted Decibels

Provides listings of estimated airplane noise levels in units of A-weighted sound levels in decibels (dBA), ranked in describing order for the conditions and assumptions described. This information is provided both for aircraft that have been noise type certificated under 14 CFR Part 36 and for Aircraft for which no such requirement currently exists.

Active AEE-100 2002-04-25
150/5150-2C Federal Surplus Personal Property Program for Public Airport Purposes

This AC explains to public airport sponsors and other interested parties the Federal Surplus Personal Property Program for Public Airports.

Active ACO-100 2012-08-31
33.15-1 Manufacturing Process of Premium Quality Titanium Alloy Rotating Engine Components

Provides guidance for compliance with the provisions under Title 14 under the Code of Federal Regulations, Part 33 (14 CFR 33) pertaining to the materials suitability and durability requirements, 33.15, as applicable to the manufacture of titanium alloy high energy rotating parts of aircraft engines.

Active ANE-110 1998-09-22
33.28-3 Guidance Material For 14 CFR §33.28, Engine Control Systems

This advisory circular (AC) provides guidance and describes acceptable methods, butnot the only methods, for demonstrating compliance with the engine control systems requirements of § 33.28 of Title 14 of the Code of Federal Regulations (14 CFR part 33) at amendment level 3326.

Active ANE-111 2014-05-23
21.101-1B Establishing the Certification Basis of Changed Aeronautical Products

This advisory circular (AC) provides guidance for the application ofthe "Changed Product Rule (CPR)," pursuant to Title 14 ofthe Code ofFederal Regulations (14 CFR) 21.101, Designation ofapplicable regulations, and 21.19, Changes requiring a new type certificate, for changes made to type certificated aeronautical products.

Active AIR-100 2016-03-11
43-12A Preventive Maintenance

This advisory circular (AC) provides information concerning preventive maintenance,including who may perform it, the standards of performance applicable to it, authority for approval for return to service, and the applicable recording requirements. This AC clarifies those areas most frequently misunderstood in the past.

Active AFS-340 1983-10-28
120-35D Flightcrew Member Line Operational Simulations: Line-Oriented Flight Training, Special Purpose Operational Training, Line Operational Evaluation

This advisory circular (AC) presents guidelines for the design and implementation of Line Operational Simulations (LOS), including Line-Oriented Flight Training (LOFT), Special Purpose Operational Training (SPOT), and Line Operational Evaluation (LOE) for flightcrew members.

Active AFS-200 2015-03-13
120-87C Use of Child Restraint Systems on Aircraft

It is a part of the FAA’s ongoing commitment to educate and inform aircraft operators, crewmembers, and airline passengers regarding the use of CRSs on aircraft in order to encourage and increase the use of approved CRSs.

Active AFS-200 2015-09-24
00-56B Voluntary Industry Distributor Accreditation Program

We have revised this AC to meet current changes in regulatory requirements and industry practices since original publication. This AC is not mandatory and does not constitute a regulation.

Active AFS-300 2015-05-27
25.795-5 Cargo Compartment Fire Suppression

This section requires that the fire suppression system for the cargo compartment be designed to withstand a sudden and extensive explosion and fire, such as could be caused by an explosive or incendiary device.

Active ANM-100 2008-10-24
21-12C Application for U.S. Airworthiness Certificate, FAA Form 8130–6

This advisory circular (AC) provides guidance and information needed to prepare and submit Federal Aviation Administration (FAA) Form 8130-6, Application for U.S.

Active AIR-200 2012-09-07
68-1A BasicMed

It outlines the required medical education course, medical requirements, and aircraft and operating restrictions that pilots must meet to act as pilot in command (PIC) for most Title 14 of the Code of Federal Regulations (14 CFR) part 91 operations.

Active AFS-800 2017-05-03
20-124 Water Ingestion Testing for Turbine Powered Airplanes

Describes a method of demonstrating compliance with the requirements of the FAR concerning the ingestion of water from the runway/taxiway surface into the airspeed system, the engine, and essential auxiliary power unit air inlet ducts of turbine engine power unit air inlet ducts of turbine engine powered airplanes.

Active ANM-112 1985-09-30
25.939-1 Evaluating Turbine Engine Operating Characteristics

Provides guidelines for the evaluation of turbine engine (turbojet, turboprop, and turboshaft) operating characteristics for subsonic transport category airplanes.

Active ANM-112 1986-03-19
23-8C Flight Test Guide for Certification of Part 23 Airplanes

This AC is one method being utilized to achieve national standardization in normal, utility, acrobatic, and commuter category airplanes. This AC applies to Subpart B and various sections under Subparts A, D, E, F and G from § 23.1 through § 23.1589.

Active ACE-100 2011-11-16
25-28 Compliance of Transport Category Airplanes with Certification Requirements for Flight in Icing Conditions

They are meant to supplement the engineering judgment that must form the basis of any compliance findings for the supercooled large drop icing conditions in §§ 25.773, 25.1323, 25.1324, and 25.1325, as well as the compliance findings for §§ 25.1419 and 25.1420.

Active ANM-110 2014-10-27
29-2C Certification of Transport Category Rotorcraft (Changes 1 - 9 incorporated)

This revision makes needed changes to this Advisory Circular (AC).
b. The change number and the date of the changed material are shown at the top of each page.

Active AIR-600 2008-09-30
27-1B Certification of Normal Category Rotorcraft (Changes 1 - 9 incorporated)

a.This revision makes needed changes to this Advisory Circular (AC).
b.The change number and the date of the changed material are shown at the top of each page.

Active AIR-600 2008-09-30
450.123-1 Population Exposure Analysis

This Advisory Circular (AC) provides guidance and methods for performing a population exposure analysis in accordance with Title 14 of the Code of Federal Regulations (14 CFR) 450.123.

Active AST-1 2022-10-12
120-95A Portable Oxygen Concentrators

We intend for operators to use this AC as a resource during the development, implementation, and revision of standard operating procedures (SOP) and training programs regarding the use of POCs on board aircraft to increase the accessibility of air travel by passengers with disabilities.

Active AFS-200 2016-05-24
121.195-1A Operational Landing Distances for Wet Runways; Transport Category Airplanes

This advisory circular {AC) sets forth an acceptable means, but not the only means, of showing compliance with Federal Aviation Regulations (FAR) § 121.195 (d) pertaining to operational landing distances on wet runways. It is for guidance purposes and provides an example of method of compliance that has been found acceptable.

Active AFS-200 1990-06-19
20-123 Avoiding or Minimizing Encounters with Aircraft Equipped with Depleted Uranium Balance Weights during Accident Investigations

Provides information and guidance to individuals who come in contact with depleted uranium contained in aircraft control surfaces during accident investigations.

Active AFS-330 1984-12-20
120-32 Air Transportation of Handicapped Persons

Identifies some of the problems handicapped air travelers face and provides some guidelines to airline personnel to help alleviate these problems.

Active AFS-223 1977-03-25
121.321-1 Compliance with Requirements of § 121.321, Operations in Icing

Using visible moisture and temperature as a means for the flightcrew to know when the airframe ice protection system (IPS) must be activated.

Active ANM-100 2011-08-04
150/5335-5D Standardized Method of Reporting Airport Pavement Strength - PCR

This AC provides guidance for using the standardized International Civil Aviation Organization (ICAO) method, called the Aircraft Classification Rating – Pavement Classification Rating (ACR-PCR) method, to report airport runway, taxiway, and apron pavement strength. Includes instructions for using the FAARFIELD program to calculate ACR and PCR values.

Active AAS-110 2022-04-29
450.107-1 Hazard Control Strategies Determination

This AC does not constitute a regulation and does not contain requirements, but is intended to assist prospective applicants in obtaining commercial space authorizations and operating in compliance with commercial space regulations.

Active AST-1 2021-07-27
120-44A Air Carrier First Aid Programs

Provides guidance about first aid program resources, subjects, equipment, and pertinent regulations. This revision adds information about blood borne pathogen awareness programs.

Active AFS-203 2001-06-06
150/5220-22B Engineered Materials Arresting Systems (EMAS) for Aircraft Overruns

Contains standards for the planning, design, installation, and maintenance of Engineered Materials Arresting Systems (EMAS) in runway safety areas (RSAs).

Active AAS-100 2012-09-27
33.14-1 Damage Tolerance for High Energy Turbine Engine Rotors - Including Change 1

Section 33.14 contains requirements applicable to the design and life management of high energy rotating parts of aircraft gas turbine engines.

Active ANE-110 2001-01-08
25.856-2A Installation of Thermal/Acoustic Insulation for Burnthrough Protection

This guidance applies to airplanes required to comply with § 25.856 and part VII of Appendix F to 14 CFR part 25.

Active ANM-115 2008-07-29
25.621-1 Casting Factors

Section 25.621 outlines the factors, tests, and inspections that must be applied to castings used in structural applications.

Active ANM-115 2014-10-06
91-66 Noise Abatement for Helicopters

Presents guidelines intended to assist pilots, operators, managers, and other interested persons in the establishment of effective noise reduction procedures when operating helicopters.

Active AFS-840 1987-06-04
25.1529-1A Instructions for Continued airworthiness of Structural Repairs on Transport Airplanes

It addresses the approval procedures to follow when making structural repairs to structure certificated under the damage tolerance requirements of Section 25.571 of FAR, Amendment 25-45, and to type designs with Supplemental Inspection Documents, which were based on these criteria.

Active ANM-100 2007-11-20
33.15-3 Powder Bed Fusion Additive Manufacturing Process for Aircraft Engine Parts

Guidance is also presented on closely related design and manufacturing aspects associated with AM.

Active AIR-621 2023-06-23
129-5 Provision of Technical Assistance to Civil Aviation Authorities for Safety Oversight of International Commercial Air Transportation Including by Commercial Technical Assistance Providers

This advisory circular (AC) provides information about the provision of technical assistance to Civil Aviation Authorities (CAA) related to compliance with International Civil Aviation Organization (ICAO) standards and recommended practices. The AC explains the process the Federal Aviation Administration (FAA) uses to provide assistance to CAAs and also provides guidance CAAs can use to obtain technical assistance from commercial providers if the services of the FAA are not available.

Active AFS-50 2013-08-16
20-188 Compatibility of Changes to Type Design Installed on Aircraft

Previously approved changes include other major or minor changes to type design approved under Title 14 of the Code of Federal Regulations (14 CFR) part 21, Certification Procedures for Products and Parts. Alterations or repairs to aircraft approved pursuant to part 43, Maintenance, Preventive Maintenance, Rebuilding, and Alteration should also be considered.

Active AIR-1 2016-12-09
33.70-1 Guidance Material for Aircraft Engine Life-Limited Parts Requirements

Section 33.70 contains requirements applicable to the design and life management of propulsion system life-limited parts including high-energy rotating parts.

Active AIR-600 2009-07-31
91-71 Operation of Hot Air Balloons with Airborne Heaters

Provides guidance for the safe and practical operation of hot air balloons with airborne heaters in compliance with appropriate portions of 14 CFR 91.

Active AFS-820 1996-06-13
120-50A Guidelines for Operational Approval of Windshear Training Programs

Provides guidance for approval of low-altitude windshear training for operations under Title 14 of the Code of Federal Regulations, parts 121 and 135.

Active AFS-210 1996-02-09
170-14 Implementation of 50 kHz/Y Channels for ILS/VOR/DME

Advises aircraft owners, operators, and radio equipment manufacturers of the FAA’s continued implementation of 50 kHz/Y or Omnidirectional Range (VOR) frequency assignments.

Active ASM-500 1992-07-30
21.25-1 Issuance of Type Certificate: Restricted Category Agricultural Airplanes

Provides information and guidance for obtaining a type certificate in the restricted category under Title 14 of the Code of Federal Regulations (14 CFR) Part 21, Section 21.25, for small single-engine piston and turbo-propeller driven airplanes, which will be used for agricultural special purpose operations.

Active ACE-111 1997-12-01
91-75 Attitude Indicator

This AC excludes airplanes covered by section 91.205(d)(3)(i) and (ii). This AC is applicable to part 23-certificated airplanes (or airplanes certificated under earlier equivalent regulations) that weigh less than 12,500 pounds and are operated under part 91.

Active AFS-400 2003-06-25
121-33B Emergency Medical Equipment

AC provides guidance to elaborate requirements for enhanced emergency medical equipment currently carried on most major air carriers and becoming mandatory as of April 12, 2004

Active AFS-220 2006-01-12
120-62 Takeoff Safety Training Aid

Announces the availability of a joint industry/FAA Takeoff Safety Training Aid to help air carriers and pilots increase safety during the takeoff phase of flight.

Active AFS-210 1994-09-12
150/5370-15B Airside Applications for Artificial Turf

Provides guidance for the planning, design, installation, and maintenance of aviation grade artificial turf in areas adjacent to the operational areas of an airport.

Active AAS-100 2011-09-30
150/5340-1M Standards for Airport Markings

This AC contains the FAA standards for markings used on airport runways, taxiways, and aprons. Consolidated to include Change 1, dated December 23, 2020.

Active AAS-100 2019-05-10
150/5220-25 Airport Avian Radar Systems

Provides guidance on the use of avian radar systems to supplement an airport’s Wildlife Hazard Management Plan (WHMP) and reduce the potential avian threats to aircraft.

See also:

Active AAS-100 2010-11-23
11-2A Notice of Proposed Rulemaking Distribution System

This circular provides the public with information relative to the participation in the Federal Aviation Administration (FAA) rulemaking process and the availability of Notices of Proposed Rulemaking.

Active ARM-1 1984-07-26
21-9B Manufacturers Reporting Failures, Malfunctions, or Defects

This AC is not mandatory and does not constitute a regulation. This AC describes an acceptable means, but not the only means, to comply with the requirements to assist manufacturers of aeronautical products and articles in reporting to the Federal Aviation Administration (FAA) any defect in any product or article they manufacture.

Active AIR-200 2010-08-12
21-31A Quality Control for the Manufacature of Non-Metallic Compartment Interior Components

This advisory circular (AC)

1) Provides information about Title 14, Code of Federal Regulations (14 CFR), part 21, Certification Procedures for Products, Articles, and Parts.

2) Provides information for both an applicant for, and a holder of, a production approval, and refers to both as a production approval holder (PAH).

Active AIR-200 2010-08-31
120-73 Damage Tolerance Assessment of Repairs to Pressurized Fuselages

The means of compliance described is intended to provide guidance to supplement the engineering and operational judgment that must form the basis of any compliance findings relative to repair assessments for pressurized fuselages.

Active ANM-100 2000-12-14
25-24 Sustained Engine Imbalance

While these guidelines are not mandatory, they are derived from extensive Federal Aviation Administration (FAA) and industry experience in determining compliance with the pertinent Federal Aviation Regulations (FAR).

Active ANM-100 2000-08-02
142-1 Standardized Curricula Delivered by Part 142 Training Centers

This advisory circular (AC) introduces the standardized curriculum concept for Title 14 of the Code of Federal Regulations (14 CFR) part 135 training provided by 14 CFR part 142 training centers and describes the associated benefits of this voluntary approach. This AC provides guidance to part 142 training centers on how to obtain approval to deliver a standardized curriculum to part 135 operators, including guidance on how a part 142 training center may qualify its personnel as instructors and check pilots under part 135.

Active AFS-200 2020-04-27
91-62A Use of Child Seats in Aircraft

Provides information to assist the public in the proper use of child seats aboard aircraft and provides precautions so all occupants are able to exit rapidly from aircraft during emergencies.

Active AIR-120 1992-10-15
121-36 Management of Passengers who may be Sensitive to Allergens

Provides guidance regarding air carrier passenger handling procedures for allergen-sensitive people, including the importance of crewmember training in recognizing and responding to medical events that result from allergen exposure.

Active AFS-200 2002-12-31
91-46 Gyroscopic Instruments - Good Operating Practices

Issued to re-emphasize to general aviation instrument-rated pilots the need to determine the proper operation of gyroscopic instruments, the importance of instrument crosschecks and proficiency in partial-panel operations.

Active AFS-350 1977-02-04
25-12 Airworthiness Criteria for the Approval of Airborne Windshear Warning Systems in Transport Category

Like all advisory circular material, this advisory circular is not, in itself, mandatory and does not constitute a regulation. It is issued for guidance purposes and to outline a method of compliance with the rules.

Active ANM-110 1987-11-02
20-168 Certification Guidance for Installation of Non-Essential, Non-Required Aircraft Cabin Systems & Equipment (CS&E)

This AC is not mandatory and d