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
20-66B Propeller Vibration and Fatigue

This evaluation uses fatigue and structural data obtained in accordance with 14 CFR part 35.

 Active ANE-111 2011-03-24
20-18B Qualification Testing of Turbojet and Turbofan Engine Thrust Reversers

It does not address aircraft-level effects of the installation and use of a thrust reverser.

 Active ANE-111 2015-07-07