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 21-23 - Airworthiness Certification of Civil Aircraft Engine, Propellers, and Related Products (Cancelled)

Document Information

Number
21-23
Title
Airworthiness Certification of Civil Aircraft Engine, Propellers, and Related Products
Date cancelled
2000-10-20
Cancelled by
21-23A
Date issued
1987-07-07
Office of Primary Responsibility
AIR-4
Content