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150/5150-2C APP-520 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.  It contains the procedures for applying for screener credentials and to request authorized surplus personal property through the GSAXcess system administered by the General Services Administration (GSA) for disposition of federal surplus personal property.

121-22C AFS-300 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. This AC refers to these minimum scheduled tasking/interval requirements as the Maintenance Review Board Report (MRBR), the Maintenance Type Board Report (MTBR), or the Original Equipment Manufacturer (OEM)/type-certificate holder’s (TCH) Recommended Maintenance Procedures.  After FAA approval, the requirements become a basis upon which operators develop their own individual maintenance programs. The report will become a dynamic report for each TCH.

Use this AC to standardize the development, implementation, and update of FAA-approved minimum scheduled maintenance/inspection requirements.

120-109 AFS-200 Stall and Stick Pusher Training

The information contained in this advisory circular (AC) was developed based on a review of recommended practices developed by major airplane manufacturers, labor organizations, air carriers, training organizations, simulator manufacturers, and industry representative organizations. This AC does not provide guidance for full aerodynamic stall training, which industry and government stakeholders are now developing. Once developed, this AC will be revised to include that guidance.

The goal of this AC is to provide best practices and guidance for training, testing, and checking for pilots, within existing regulations, to ensure correct and consistent responses to unexpected stall warnings and stick pusher activations. This AC emphasizes reducing the angle of attack (AOA) at the first indication of a stall as the primary means of approach-to-stall or stall recovery. Additionally, this AC provides guidance for operators and training centers in the development of stall and stick pusher event training.

120-74B AFS-200 Parts 91, 121, 125, and 135 Flightcrew Procedures During Taxi Operations

This advisory circular (AC) provides guidelines for the development and implementation of standard operating procedures (SOP) for conducting safe aircraft operations during taxiing to avoid causing a runway incursion. In accordance with 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. It is intended for use by persons operating aircraft with two or more pilots on the flight deck under Title 14 of the Code of Federal Regulations (14 CFR) parts 91, 121, 125, and 135. The FAA recommends that these guidelines become an integral part of all SOPs, flight operations manuals (FOM), and formal flightcrew member training programs. The use of flightcrew SOPs should be emphasized and employed during all phases of flight, including ground operations. Appendices 1 and 2 of this AC contain examples of SOPs that are identical or similar to some SOPs currently in use. These appendices are not directive or prescriptive in nature and do not represent a rigid FAA view of Best Practices. SOPs may vary among fleets and among certificate holders and may change over time. Operators may integrate the information contained in Appendices 1 and 2 into their fleet-specific, route-specific, and equipment-specific operations and checklists. They are shown to denote how the SOPs and Best Practices can be integrated into the context of specific flight operations.

91-73B AFS-200 Parts 91 and 135 Single Pilot, Flight School Procedures During Taxi Operations

This advisory circular (AC) provides guidelines for the development and implementation of standard operating procedures (SOP) for conducting safe aircraft operations during taxiing to avoid causing a runway incursion. 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. The FAA recommends that these guidelines become an integral part of all SOPs, Flight Operations Manuals (FOM), and formal flight training programs.

150/5220-21C AAS-100 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. The physical area covered in this AC is that which is bounded by the door of the passenger terminal area, on one end, to the door of the aircraft, on the other end. Although this AC refers only to aircraft boarding (enplaning), all references apply equally to disembarking (deplaning) with the described procedures occurring in reverse order.

The previous version of this AC discussed only the passenger lift scenario and associated equipment. This document updates that effort and addresses the other methods and equipment used to board an aircraft, including passenger boarding bridges, ramps, lifts, and aircraft boarding chairs.

120-98A AFS-300 Operator Information for Incorporating Fuel Tank Flammability Reduction Requirements into a Maintenance or Inspection Program

This advisory circular (AC) provides information and describes an acceptable means of compliance (AMC) with the Reduction of Fuel Tank Flammability in Transport Category Airplanes, final rule. It is commonly called the Fuel Tank Flammability Reduction (FTFR) rule. This AC describes acceptable means, but not the only means, for demonstrating compliance with the applicable regulations. The Federal Aviation Administration (FAA) will consider other methods of demonstrating compliance that an applicant may elect to present. While these guidelines are not mandatory, they are derived from extensive FAA and industry experience in determining compliance with the relevant regulations. If the FAA becomes aware of circumstances that convince us that following this AC would not result in compliance with the applicable regulations, the FAA may require additional substantiation or design changes as a basis for finding compliance. This material does not change or create any additional regulatory requirements, nor does it authorize changes in or permit deviations from existing regulatory requirements.

20-178 AIR-100 Flammability Testing of Aircraft Cabin Interior Panels After Alterations

This advisory circular (AC) describes acceptable methods to test aircraft cabin interior materials when new finishes are used on existing aircraft cabin interior panels, typically performed on supplemental type certificates (STC) or major alterations. This AC applies to materials for self-extinguishing flammability only. This AC does not apply to materials that must meet heat release or smoke emissions,standards established by Title 14 of the Code of Federal Regulations (14 CFR) part 25, Amendment 25-61, and 14 CFR part 121, Amendment 121-289. We, the Federal Aviation Administration (FAA), have written this AC for applicants, offering several methods for demonstrating compliance that may be more cost-effective and less time-consuming than current methods.

120-68F AFS-600 Pilot Records Improvement Act of 1996

The Pilot Records Improvement Act of 1996 (PRIA), as amended, was enacted to ensure that air carriers and air operators adequately investigate a pilot’s background before allowing that pilot to conduct commercial air carrier flights. Under PRIA, a hiring employer cannot place a pilot into service until he or she obtains and reviews the last 5 years of the pilot’s background and other safety-related records as specified in PRIA.

This advisory circular (AC) is supplemented by the current edition of Federal Aviation Administration (FAA) Order 8000.88, PRIA Guidance for FAA Inspectors, and numerous other documents found on the PRIA Web site at These sources of detailed information related to PRIA provide invaluable assistance to the certificate holder or others concerning the PRIA request process as well as other compliance issues.

The FAA has greatly expanded this AC from the previous version to address operational situations that the hiring employer may encounter that could affect his or her records request process through PRIA.

The Flight Standards Service (AFS) is committed to a stakeholder-driven system of operation that will deliver FAA records and assistance to all parties subject to PRIA, when necessary.

120-97A AFS-300 Incorporation of Fuel Tank System Instructions for Continued Airworthiness into Operator Maintenance or Inspection Programs

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). It has since been referred to as the 2001 Fuel Tank Safety (FTS) rule. It adopted amendments to part 25, Special Federal Aviation Regulation (SFAR) 88 and operating requirements related to SFAR 88. The operating requirements included requirements to implement instructions for continued airworthiness (ICA) that design approval holders (DAH) developed in compliance with SFAR 88. On November 8, 2007, the Federal Aviation Administration (FAA) published the Enhanced Airworthiness Program for Airplane Systems (EAPAS)/FTS final rule. The purpose of the rule is to help ensure the continued safety of transport category airplanes by improving the design, installation, and maintenance of electrical wiring systems. The EAPAS/FTS rule amended the operating requirements to implement FTS actions developed in accordance with SFAR 88. Integrating the incorporation of the fuel tank system and electrical wiring interconnection system (EWIS) requirements helps to ensure compatibility and to eliminate duplication. Additionally, the EAPAS/FTS rule redesignates (replaces) Title 14 of the Code of Federal Regulations (14 CFR) part 91, § 91.410(b); part 121, § 121.370(b); part 125, § 125.248(b); and part 129, § 129.32(b) of the FTS rule. The new sections are §§ 91.1507, 121.1113, 125.507 and 129.113. These new rules also clarify language with reference to the approval process of the operator’s program. This advisory circular (AC) only addresses the fuel tank system safety requirements and describes acceptable means of compliance (AMC) accordingly. The current edition of AC 120-102, Incorporation of Electrical Wiring Interconnection Systems Instructions for Continued Airworthiness into an Operator’s Maintenance Program, addresses EWIS requirements in the EAPAS/FTS rule.

61-98B AFS-800 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. This AC is particularly directed to General Aviation (GA) pilots holding sport or higher grades of pilot certificates who wish to maintain currency and to certificated flight instructors (CFI) who give flight instruction to support such activities. This AC does not apply to training programs or proficiency checks conducted pursuant to 14 CFR part 121 or 135, nor to curriculums approved pursuant to 14 CFR part 142.

150/5390-2C AAS-100 Heliport Design

Provides standards for the design of heliports serving helicopters with single rotors. Basic concepts can also be applied to facilities serving helicopters with tandem (front and rear) or dual (side by side) rotors; although many standards will not apply to these facilities.

This version adds guidance for pavement or structure larger than the touchdown and liftoff area (TLOF), but less than the size of the final approach and take off (FATO); turbulence effects; clearance between parking areas and taxi routes and within parking areas; minimum dimensions of curved approach/departure airspace; Touchdown/Positioning Circle (TDPC) Marking; Flight Path Alignment Guidance markings and lights; Emergency Helicopter Landing Facility Requirements (EHLF); FATO to FATO separation distance for simultaneous operations; revised standards for size of “H” for general aviation heliports; increased TLOF size when the FATO of a hospital heliport is not load bearing; and Heliport Protection Zone (HPZ) for hospital heliports. See "Principal Changes" for a complete list.

20-172A AIR-130 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. These applications are defined in TSO-C195a, Avionics Supporting Automatic Dependent Surveillance – Broadcast (ADS-B) Aircraft Surveillance Applications (ASA). The applications discussed in this AC are designed to support basic situational awareness as well as the In-Trail Procedure. As more advanced applications mature, this AC will be updated to reflect those added to TSO-C195a.

25.803-1A ANM-115 Emergency Evacuation Demonstrations

This advisory circular (AC) provides guidance on means, but not the only means, of compliance with Title 14, Code of Federal Regulations (14 CFR) part 25 concerning:  (1) conduct of full?scale emergency evacuation demonstrations, and (2) use of analysis and tests in lieu of conducting an actual demonstration.  Throughout this AC, any reference to a full-scale demonstration, unless further qualified, means an evacuation demonstration in which a full complement of passengers and the requisite number of crewmembers evacuate an airplane using assist means, if installed, under the conditions specified in part 25, appendix J.  References to “appendix J” means 14 CFR part 25, appendix J.  Additionally, any reference to an analysis, which is to be used to satisfy the emergency evacuation requirements of part 25, means a formal analysis document supported by data from tests or demonstrations.  Terms such as “shall” and “must” are used only in the sense of ensuring applicability of this particular means of compliance when the acceptable means of compliance described herein is used.

39-7D AFS-300 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.

20-177 AIR-130 Design and Installation Guidance for an Airborne System for Non-Required Telecommunication Service in Non Aeronautical Frequency Bands

A.  In this advisory circular (AC), the Federal Aviation Administration (FAA) recommends one way to gain airworthiness approval for an Airborne System for Non-Required Telecommunication (ASNRT) service equipment in the cockpit.  This AC is not mandatory and does not constitute a regulation.  This AC describes an acceptable means, but not the only means, to gain airworthiness approval for your ASNRT equipment.  However, if you use the means described in this AC, you must follow it in its entirety.

 B.  ASNRT equipment is intended to provide flight crews with voice and data communication service over non aeronautical frequency bands.  ASNRT consists of electronic onboard equipment which is not required for any phase of operation nor intended for Minimum Equipment List (MEL) dispatch relief. 

 C.  The guidelines contained in this AC are not intended to support airborne systems used for safety of flight communication such as Air Traffic Services (ATS), Airline Operational Control (AOC), or communication systems used to fulfill an operating requirement for a communication system.  In addition, this AC provides guidance for aircraft equipment capable of subscribing to the FAA System Wide Information Management (SWIM) infrastructure.

150/5200-36A AAS-300 Qualifications for Wildlife Biologist Conducting Wildlife Hazard Assessments and Training Curriculums for Airport Personnel Involved in Controlling Wildlife Hazards on Airports (Consolidated AC includes Change 1)

Describes the qualifications for wildlife biologists who conduct Wildlife Hazard Assessments (WHA) for airports certificated under 14 CFR Part 139 and at non-certificated airports funded by the Airport Improvement Program (AIP) or Passenger Facility Charge (PFC) Program. Addresses the minimum wildlife hazard management curriculum for the initial and recurrent training of airport personnel who implement an FAA-approved Wildlife Hazard Management Plan (WHMP).

Consolidated AC includes Change 1 dated 1/31/2013. See also--

CHANGE 1 (01-31-2013)

This Change adds language requiring certificated airports to maintain documentation of airport wildlife biologist qualifications. This change is in response to an Office of the Inspector General safety recommendation.

25.729-1 ANM-110 Transport Airplane Landing Gear Retracting Mechanism

This advisory circular (AC) describes an acceptable means for showing compliance with the requirements of Title 14 of the Code of Federal Regulations (14 CFR) 25.729 regarding the landing gear retracting mechanism requirements. It will be incorporated into AC 25-21, “Certification of Transport Airplane Structure” and 25-22, “Certification of Transport Airplane Mechanical Systems” at a later date.

20-176 AIR-110 Design Approval Holder Best Practices for Service Bulletins Related to Airworthiness Directives

 This advisory circular (AC) presents various best practices for design approval holders (DAHs) of aircraft, aircraft engines, propellers, and appliances when drafting service bulletins (SBs) related to an airworthiness directive (AD). This AC also provides information and guidance on avoiding overlapping and conflicting actions in SBs, ex parté communication, alternative methods of compliance (AMOCs), and maintaining airworthiness of AD-mandated design changes.

00-46E AFS-200 Aviation Safety Reporting Program

 This advisory circular (AC) describes the Federal Aviation Administration (FAA) Aviation Safety Reporting Program (ASRP) which utilizes the National Aeronautics and Space Administration (NASA) as a third party to receive and process Aviation Safety Reports. This cooperative safety reporting program invites pilots, controllers, Flight Attendants (F/A), maintenance personnel, dispatchers, and other users of the National Airspace System (NAS), or any other person, to report to NASA actual or potential discrepancies and deficiencies involving the safety of aviation operations. The 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; and airport conditions or services. The effectiveness of this program in improving safety depends on the free, unrestricted flow of information from the users of the NAS. Based on information obtained from this program, the FAA will take corrective action as necessary to remedy defects or deficiencies in the NAS. The reports may also provide data for improving the current system and planning for a future system.

20-175 AIR-120 Controls for Flight Deck Systems

This advisory circular (AC) provides guidance for the installation and airworthiness approval of flight deck system control devices, from primarily a human factors perspective.  It does not address primary flight controls, secondary flight controls, or controls that are not located in the flight deck.   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. 

90-114 AFS-400 Automatic Dependent Surveillance-Broadcast (ADS-B) Operations

The Federal Aviation Administration (FAA) has issued a new rule contained in Title 14 of the Code of Federal Regulations (14 CFR) part 91, §§ 91.225 and 91.227. This rule requires Automatic Dependent Surveillance-Broadcast (ADS-B) Out performance when operating in designated classes of airspace within the U.S. National Airspace System (NAS) after January 1, 2020. This advisory circular (AC) provides users of the NAS guidance on a means of conducting flight operations in accordance with §§ 91.225 and 91.227. The Aeronautical Information Manual (AIM) provides an overview of, and the appendices in this AC provide guidance for, additional operations enabled by ADS-B. Appendix 2 contains a list of ADS-B-related definitions.

 The intent of this advisory circular is to facilitate operation using Automatic Dependent Surveillance -Broadcast (ADS) technology in compliance with Title 14 of the Code of Federal Regulation (14 CFR) part 91, &&91.225 and 91.227, which are effective after January 1, 2020.

23-17C ACE-100 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. The policy in this AC is considered applicable for airship projects; however, the certifying office should only use specific applicability and requirements if they are determined to be reasonable, applicable and relevant to the airship project. This AC applies to Subpart D from § 23.671 and Subpart F. This AC both consolidates existing policy documents, and certain ACs that cover specific paragraphs of the regulations, into a single document and adds new guidance.

This document is intended to provide guidance for the original issue of part 23 and the various amendments through Amendment 23-62.  This version of the AC covers policy available through December 31, 2007, Policy that became available after December 31, 2007, will be consolidated in future revisions to the AC.

23.1309-1E ACE-100 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. It is issued for guidance purposes and to outline a method of compliance with the rules. An applicant may elect to follow an alternate method, provided the FAA finds it to be an acceptable means of complying with the applicable requirements of 14 CFR. However, if the applicant uses the means described in the AC, they must follow it in all important respects.

23.1311-1C ACE-100 Installation of Electronic Display in Part 23 Airplanes

This advisory circular (AC) provides guidance for showing compliance with certain requirements of Title 14, Code of Federal Regulations (CFR), part 23, as well as general guidance for the design, installation, integration, and approval of electronic flight deck displays, components, and systems installed in part 23 category airplanes. The guidance provided in this document is directed to airplane and avionics manufacturers, modifiers, and operators of part 23 category airplanes.  Applicants for a technical standard order (TSO) should consider following the guidance in this AC when the TSO requirements do not provide sufficient guidance. 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.

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