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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
39-1A JIG Fixtures; Replacement of Wing Attach Angles and Doublers on Douglas DC-3 Series Aircraft, Airworthiness Directive 66-18-2

Describes methods of determining that jig fixtures used in the replacement of the subject attached angles and doublers meet the requirements of Airworthiness Directive 66-18-2.

Active AFS-340 1970-03-05
39-8 Continued Airworthiness Assessments of Powerplant and Auxiliary Power Unit Installations of Transport Category Airplanes

Describes the Continued Airworthiness Assessment Methodologies (CAAM). The Federal Aviation Administration (FAA) Engine and Propeller Directorate (EPD) and the Transport Airplane Directorate (TAD) may use CAAM to identify unsafe conditions and determine when an “unsafe condition is likely to exist or develop in other products of the same type design” before prescribing corrective action in accordance with Title 14 of the Code of Federal Regulations (14 CFR) part 39.

Active AIR-100 2003-09-08
39-9 Airworthiness Directives Management Process

This advisory circular (AC) provides all aircraft operators with information and guidance for assistance in compliance to Title 14 of the Code of Federal Regulations (14 CFR) part 39, Airworthiness Directives.

Active AFS-330 2011-06-01
39-7D 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.

Active AFS-300 2012-03-02
39-10 Alternative Methods of Compliance

This advisory circular (AC) presents guidance for persons seeking approval of an alternativemethod of compliance (AMOC) to an airworthiness directive (AD).

Active AIR-100 2016-09-14