Flight Standards Service

Draft Advisory Circulars (ACs) Open for Comment

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Latest entries are at the bottom of this list of Document Titles.

Document Title:AC 91-91A, Maintaining Public Aircraft
Summary:

This advisory circular (AC) provides guidance that government entities can use for maintaining public aircraft to the requirements of 14 CFR parts 43 and 91 subpart E for operators conducting qualified public aircraft operations (PAO).

References:

Title 14 of the Code of Federal Regulations (14 CFR):

  • Part 43, Maintenance, Preventive Maintenance, Rebuilding, and Alteration.
  • Part 91, General Operating and Flight Rules.
  • Part 121, Operating Requirements: Domestic, Flag, and Supplemental Operations.
  • Part 135, Operating Requirements: Commuter and On Demand Operations and Rules Governing Persons On Board Such Aircraft.

Title 49 of the United States Code (49 U.S.C.):

FAA Order 8300.16, Major Repair and Alteration Data Approval

 

Documents for Download:Draft Document (PDF)
Draft Document Comment Grid (MS Word)
Comments Due:August 12, 2026
How to Comment:Email comments to:
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Last updated: Wednesday, July 15, 2026