Sets forth an acceptable means, but not the sole means, of complying with the requirements of the Federal Aviation Regulations (FAR’s) applicable to the installation on transport category airplanes of cargo load devices approved as meeting the criteria in NAS 3610.

This advisory circular (AC) provides guidance for the flight test evaluation of transport category airplanes. This AC includes flight test methods and procedures to show compliance with the regulations contained in subpart B of Title 14, Code of Federal Regulations (14 CFR) part 25, which address airplane performance and handling characteristics. This revision, AC 25-7C, is a complete revision to reduce the number of differences from the European Aviation Safety Agency’s Flight Test Guide, provide acceptable means of compliance for the regulatory changes associated with amendments 107, 109, 113, 115, 119, and 123 to part 25, respond to National Transportation Safety Board recommendations, and to provide a general update to reflect current FAA and industry practices and policies.

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.

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.

This advisory circular (AC) provides guidance for showing compliance with certain requirements of Title 14, Code of Federal Regulations (CFR), part 25, for the design, installation, integration, and approval of electronic flight deck displays, components, and systems installed in transport category airplanes.

This advisory circular (AC) provides guidance for the airworthiness approval of airborne windshear warning systems in transport category airplanes. 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. In lieu of following this method without deviation, the applicant may elect to follow an alternate method, provided the alternate method is also found by the Federal Aviation Administration (FAA) to be an acceptable means of complying with the requirements of Part 25 of the Federal Aviation Regulations (FAR). Because the method of compliance presented in this AC is not mandatory, the terms "shall" and "must" used in this AC apply only to an applicant who chooses to follow this particular method without deviation.

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.

This advisory circular (AC) provides guidance material for the airworthiness approval of flight management systems (FMS) 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. In lieu of following this method without deviation, the applicant may elect to follow an alternate method, provided the alternate method is also found by the Federal Aviation Administration (FAA) to be an acceptable means of complying with the requirements of Part 25. Because the method of compliance presented in this AC is not mandatory, the terms "shall" and "must" used herein apply only to an applicant who chooses to follow this particular method without deviation.

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.  These means are not mandatory.  An applicant may elect to use any other means found to be acceptable by the Federal Aviation Administration for compliance with the Federal Aviation Regulations (FAR).

This Advisory Circular (AC) provides acceptable certification methods, but not necessarily the only acceptable methods, for demonstrating compliance with the crashworthiness requirements of part 25, as amended through Amendment 25-112, of Title 14 of the Code of Federal Regulations (14 CFR) for transport category airplanes. The guidance in this AC is not mandatory nor a regulation.

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.

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. This AC describes an acceptable means, but not the only means, for selecting, documenting, and managing CMRs. 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.

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.

Provides guidance to airplane manufacturers, modifiers, foreign regulatory authorities, and FAA transport airplane type certification engineers and their designees.

Provides methods acceptable to the Administrator for showing compliance with the type certification requirements for transport airplane mechanical systems and equipment installations.

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.

Sets forth an acceptable means, but not the only means, of demonstrating compliance with the provisions of 14 CFR Part 25 related to the aircraft design for sustained engine rotor imbalance conditions. 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).

This advisory circular (AC) describes an acceptable means for showing compliance with the airplane certification requirements related to performance and handling characteristics of transport category airplanes for flight in the icing conditions defined in appendix C of Title 14, Code of Federal Regulations (14 CFR) part 25. Part 25 contains the airworthiness standards applicable to transport category airplanes. The means of compliance described in this document provide guidance to find compliance relative to airplane performance and handling characteristics in appendix C icing conditions.

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.

This Advisory Circular (AC) provides guidance for showing compliance with certain requirements of Title 14 of the Code of Federal Regulations (14 CFR), part 25, for the design approval of flightcrew-alerting functions

Describes acceptable means for showing compliance with certain requirements of Title 14, CFR, of FAR 25.1329, Flight Guidance System. While Part 25 contains the airworthiness standards applicable to transport category airplanes, the guidance in this AC pertains to the functions of autopilots, as well as any interactions with stability augmentation and trim functions.