Skip to page content

USA Banner

Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

United States Department of Transportation United States Department of Transportation

Advisory Circulars (ACs)

Search Results

Number, title, description, or office

Advisory Circulars (ACs) search results
Number Title Status Office Date
91-91 Maintaining Public Aircraft

This AC is intended to provide guidance for developing maintenance and inspection programs for aircraft operated as public aircraft.

Active AFS-300 2016-10-19
91-90 Part 91 Approved Inspection Programs

This advisory circular (AC) prescribes the procedures to develop and submit aircraft owner- and operator-specific inspection programs in accordance with an inspection program selected under the provisions of Title 14 of the Code of Federal Regulations (14 CFR) part 91, § 91.409(f)(4), and satisfies the requirements of § 91.409(g) for review and approval by the Federal Aviation Administration (FAA).

Active AFS-300 2017-04-05
91-44A Operational and Maintenance Practices for Emergency Locator Transmitters and Receivers - Change 1

Combines and updates material in several Advisory Circulars on the subject of emergency locator transmitters (ELT) receivers for airborne service.

Active AFS-300 1980-12-12
91-59A Inspection and Care of General Aviation Aircraft Exhaust Systems - Change 1

This advisory circular (AC) emphasizes the safety hazards of poorly maintained aircraft exhaust systems (reciprocating powerplants) and highlights points at which exhaust system failures occur.

Active AFS-300 2007-07-23