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Advisory Circulars

Airworthiness Directives

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Number Office Title Date
39-10 AIR-100 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). This AC also providesanswers to common questions regarding AMOCs. 09-14-2016
39-7D AFS-300 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.

39-9 AFS-330 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. The recommendations contained in this AC are one means, but not the only means, of complying with part 39 requirements pertaining to Airworthiness Directives (AD). However, individual operations and needs should determine an operator’s AD management process. When developing an AD management process, operators should consider their size, capabilities, resources, and equipment.


Change 1 dated 12/13/11

39-8 AIR-100 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. CAAM is used for products associated with the Powerplant or Auxiliary Power Unit (APU) Installations on Transport Category Airplanes. 09-08-2003
39-1A AFS-340 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. 03-05-1970

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