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
-
- AC21-23.pdf (PDF)