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United States Department of Transportation

Flight Standards Service

Draft Advisory Circulars (ACs) Open for Comment

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Document Title:	AC 120-77A, Maintenance and Alteration Data Contained in an Air Carrier Manual Under § 43.13(c)
Summary:	This AC recommends acceptable methods by which air carriers and commercial operators, operating under 14 CFR part 121; part 129, § 129.14; and part 135, § 135.411(a)(2), apply the special provisions of 14 CFR part 43, § 43.13(c). This AC provides one means, but not the only means, of ensuring that the contemplated maintenance, alteration, or continue-in-service condition is in compliance with applicable regulations and existing policy.
References:	Title 14 of the Code of Federal Regulations (14 CFR) Part 3, General Requirements Part 23, Airworthiness Standards: Normal Category Airplanes Part 25, Airworthiness Standards: Transport Category Airplanes Part 27, Airworthiness Standards: Normal Category Rotorcraft Part 29, Airworthiness Standards: Transport Category Rotorcraft Part 43, Maintenance, Preventive Maintenance, Rebuilding, and Alteration Part 121, Operating Requirements: Domestic, Flag, and Supplemental Operations Part 129, Operations: Foreign Air Carriers and Foreign Operators of U.S.-Registered Aircraft Engaged In Common Carriage Part 135, Operating Requirements: Commuter and On Demand Operations and Rules Governing Persons On Board Such Aircraft.
Documents for Download:	Draft Document (PDF) Draft Document Comment Grid (MS Word)
Comments Due:	December 1, 2021
How to Comment:	Deliver comments by mail or hand to: Christopher Lewis 600 Maryland Ave SW Suite 610E Washington, DC 20024 Email comments to: Email Comments