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.

Site Notification

Site Notification

United States Department of TransportationUnited States Department of Transportation

AC 20-77B - Use of Manufacturers’ Maintenance Manuals

Document Information

Number
20-77B
Title
Use of Manufacturers’ Maintenance Manuals
Status
Active
Date issued
2016-01-04
Office of Primary Responsibility
AFS-300
Description

This advisory circular (AC) informs owners and operators about the usefulness of manufacturer’s maintenance manuals for servicing, repairing, and maintaining aircraft, engines, and propellers.

Content