This advisory circular describes an acceptable means for showing compliance with the requirements of § 25.621, Casting factors, of Title 14, Code of Federal Regulations part 25. Section 25.621 outlines the factors, tests, and inspections that must be applied to castings used in structural applications.
Aeroelastic Stability Substantiation of Transport Category Airplanes
This advisory circular (AC) provides guidance material for acceptable means, but not the only means, of demonstrating compliance with the provisions of Title 14, Code of Federal Regulations part 25 associated with the design requirements for transport category airplanes to preclude the aeroelastic instabilities offlutter, divergence, and control reversal. The precise details for analytical procedures and testing techniques are beyond the scope of this AC. 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
|25.807-1||ANM-114||Uniform Distribution of Exits Provides guidance material for acceptable means, but not the only means, of demonstrating compliance with the requirements for distributing required passenger emergency exits uniformly. Addresses only those passenger-carrying airplanes, including mixed passenger/cargo (“combi”) configurations, with a type certification basis for Amendment 25-15 or later with respect to Section 25.807(c) or airplanes with an earlier type certification basis required by Section 25.2 to meet Section 25.807, Amendment 25-15. Does not address airplanes with only one pair of required exits.||08-13-1990|
|25-18||ANM-114||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.||01-06-1994|
|25.812-2||ANM-114||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. Although mandatory terms such as “shall” or “must” are used in this AC, because the AC method of compliance is not itself mandatory, these terms apply only to applicants who seek to demonstrate compliance by use of the specific method described by this AC.||07-24-1997|
|25.812-1A||ANM-114||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.||05-22-1989|
|20-128A||ANM-114||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. It is for guidance and to provide a method of compliance that has been found acceptable.||03-25-1997|
|20-124||ANM-112||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.||09-30-1985|
|25.1455-1||ANM-112||Waste Water/Potable Water Drain System Certification Testing Sets forth a specific method of compliance with the requirements of section 25.1455 of the FAR pertaining to draining of fluids through drain masts when the fluids are subject to freezing. 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.||03-11-1985|
|25.1309-1A||ANM-112||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.||06-21-1988|
|25-13||ANM-112||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. It consolidates FAA guidance concerning this subject and serves as a ready reference for those involved with airplane certification and operation. These procedures should be considered during airplane type certification and supplemental type certification activities when less than engine rated takeoff thrust (power) is used for takeoff.||05-04-1988|
|20-135||ANM-112||Powerplant Installation and Propulsion System Component Fire Protection Test Methods, Standards and Criteria Provides guidance for use in demonstrating compliance with the powerplant fire protection requirements of the Federal Aviation Regulations (FAR). 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.||02-06-1990|
|25.981-1C||ANM-112||Fuel Tank Ignition Source Prevention Guidelines This advisory circular provides guidance for demonstrating compliance with the certification requirements for prevention of ignition sources within the fuel tanks of transport category airplanes. This guidance is applicable to transport category airplanes for which a new, amended, or supplemental type certificate is requested.||09-19-2008|
|25.981-2A||ANM-112||Fuel Tank Flammability This advisory circular (AC) provides information and guidance on compliance with the airworthiness standards for transport category airplanes about limiting the time a fuel tank may be flammable or mitigation of hazards from flammable fuel air mixtures within fuel tanks. 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.” Guidance on compliance with the associated requirements for operators of affected airplanes that must comply with requirements in 14 CFR parts 121, 125 and 129, to incorporate flammability reduction or ignition mitigation means by specified dates, will be contained in a separate document.||09-19-2008|
|25.963-1||ANM-112||Fuel Tank Access Covers Sets forth a means of compliance with the provisions of Part 25 of the FAR dealing with the certification requirements for fuel tank access covers on turbine powered transport category airplanes. Guidance information is provided for showing compliance with the impact and fire resistance requirements of Section 25.963(e).||07-29-1992|
|25.939-1||ANM-112||Evaluating Turbine Engine Operating Characteristics Provides guidelines for the evaluation of turbine engine (turbojet, turboprop, and turboshaft) operating characteristics for subsonic transport category airplanes.||03-19-1986|
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.
|25.1419-1A||ANM-112||Certification of Transport Category Airplanes for Flight in Icing Conditions Provides guidance for certification of airframe ice protection systems on transport category airplanes.||05-07-2004|
|25-22||ANM-112||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.||03-14-2000|
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. This guidance is applicable to transport category airplanes for which a new, amended, or supplemental type certificate is requested.
|25-8||ANM-112||Auxiliary Fuel Systems Installations Sets forth acceptable means, but not the sole means, by which compliance maybe shown with auxiliary fuel system installation requirements in accordance with the Federal Aviation Regulations identified within. SN 050-007-00741-8.||05-02-1986|
Takeoff Performance Data for Operations on Contaminated Runways
This advisory circular (AC) provides guidance and standardized methods that data providers, such as type certificate (TC) holders, supplemental type certificate (STC) holders, applicants, and airplane operators, can use when developing takeoff performance data for transport category airplanes 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.
|25.703-1||ANM-111||Takeoff Configuration Warning Systems Provides guidance for the certification of takeoff configuration warning systems installed in transport category airplanes.||03-17-1993|
|25-9A||ANM-111||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. These guidelines may be used to reduce the number of decisions based solely on judgment in conducting tests and evaluating test results. While not mandatory this AC offers a method of demonstrating compliance with the applicable airworthiness requirements.||01-06-1994|
|25-20||ANM-111||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. As with all AC material, it is not mandatory and does not constitute a regulation. The applicant may elect to follow alternate methods provided that these methods are also found by the FAA to be an acceptable means of complying with the requirements of part 25. Because the guidance on the methods of compliance presented in this AC are not mandatory, the terms "shall" and "must" when used herein, apply only to an applicant that chooses to follow a particular method without deviation.||09-10-1996|