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 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.

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) 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

This advisory circular (AC) provides guidance for demonstrating compliance with the transport category airplane certification requirements of § 25.1360 Precautions against injury

This advisory circular (AC) provides guidance for demonstrating compliance with the transport category airplane certification requirements of § 25.1362, Electrical supplies for emergency conditions.

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

Provides instructions to ensure continued airworthiness of structural repairs on transport category 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.

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.

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.

This advisory circular (AC) sets forth an acceptable means, but not the only means, of demonstrating compliance with the provisions of the airworthiness standards for transport category airplanes related to the airplane design for flightdeck (also referred to as the pilot compartment or cockpit) intrusion resistance. Intrusion resistance, in the context of this AC, refers to the ability to resist forced entry by a person who is not authorized by the pilot in command to enter the flightdeck. Intrusion resistance also includes the ability to resist attempts to enter the flightdeck through use of simple tools, such as pocket knives, nail files, or keys.

This advisory circular (AC) sets forth an acceptable means, but not the only means, of demonstrating compliance with the provisions of the airworthiness standards for transport category airplanes related to the airplane design for flightdeck penetration resistance.

This advisory circular (AC) describes an acceptable means of showing compliance with the requirements of Title 14, Code of Federal Regulations (14 CFR), part 25, § 25.795(b)(1), “Flight deck protection.” This section requires that an airplane be designed to limit the entry of smoke, fumes, and noxious gases into the flightdeck in the event of detonation of an explosive or incendiary device on the airplane. 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.

This Advisory Circular (AC) provides an acceptable means of showing compliance with the requirements of Title 14, Code of Federal Regulations (CFR), part 25, § 25.795(b)(2), “Cabin smoke protection.” This section requires that an airplane be designed with means to prevent passengers from being incapacitated by smoke, fumes, and noxious gases that result from detonation of an explosive or incendiary device during flight. 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.

This advisory circular (AC) describes an acceptable means for showing compliance with the requirements of Title 14, Code of Federal Regulations (14 CFR), part 25, § 25.795(b)(3), “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. 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 the design of fire suppression systems for the cargo compartment.

This advisory circular (AC) describes an acceptable means for showing compliance with the requirements of Title 14, Code of Federal Regulations (CFR), part 25, § 25.795(c), “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.

This advisory circular (AC) describes an acceptable means for showing compliance with the requirements of Title 14, Code of Federal Regulations (14 CFR), part 25, § 25.795(c)(3), “Interior design to facilitate searches.” This section requires that the interior design of an airplane incorporate features that will make it more difficult to hide dangerous objects in the airplane or make it easier to find them if they have been brought onboard. 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. The requirements for searching an airplane are not affected by the requirements of § 25.795(c)(3). The design of the airplane will make it easier to search for hidden objects but will not affect the need for, or the diligence of, the search.

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

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.

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.