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United States Department of Transportation United States Department of Transportation

Advisory Circulars (ACs)

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Advisory Circulars (ACs) search results
Number Title Status Office Date
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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.

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Active ANM-115 2014-10-07
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
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
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
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
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
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
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
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
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
25.1701-1 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
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
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
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
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
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
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
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
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
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
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
25.335-1A Design Dive Speed

Sets forth an acceptable means , but not the only means, of demonstrating compliance with the provisions of part 25 of the Federal Aviation Regulations (FAR) related to the minimum speed margin between design cruise speed and design dive speed for transport category airplanes.

Active ANM-110 2000-09-29
25.723-1 Shock Absorption Tests

This advisory circular (AC) sets forth an acceptable means, but not the only means, of demonstrating compliance with the provisions of part 25 of the Federal Aviation Regulations (FAR) related to the use of landing gear shock absorption tests and analyses to determine landing loads for transport category airplanes.

Active ANM-110 2001-05-25
25.963-1 Fuel Tank Access Covers

Guidance information is provided for showing compliance with the impact and fire resistance requirements of Section 25.963(e).

Active ANM-112 1992-07-29
25.362-1 Engine Failure Loads

Section 25.362 specifies the engine failure dynamic load conditions that apply to the engine mounts, pylons, and adjacent supporting airframe structure.

Active ANM-115 2014-12-12
25.307-1 Proof of Structure

Section 25.307 requires structural testing to demonstrate compliance with the strength and deformation requirements of subpart C, unless structural analysis has been shown to be reliable.

Active ANM-115 2014-10-07
25.729-1 Transport Airplane Landing Gear Retracting Mechanism

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.

Active ANM-110 2011-12-28
25.1455-1 Waste Water/Potable Water Drain System Certification Testing

This method is designed to verify that draining fluids will not accumulate as ice in sufficient quantity to be hazardous. Is for guidance purposes and to set forth one method of compliance that has been found acceptable.

Active ANM-112 1985-03-11
25.795-8 Interior Design to Facillitate Searches

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 whether the interior design deters concealment of dangerous objects (e.g., weapons or explosives) and facilitates a search for them in certain areas of the airplane.

Active ANM-100 2008-10-24
25.795-9 Chemical Oxygen Generator Security Standards

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 a COG installed on an airplane.

Active ANM-100 2014-03-11