Document Information
- Number
- 20-129
- Title
- Airworthiness Approval of Vertical Navigation
(VNAV) Systems for use in the U.S. National Airspace System (NAS) and Alaska - Date cancelled
- 2012-05-08
- Cancellation notes
- AC 20-138C
- Date issued
- 1988-09-12
- Office of Primary Responsibility
- AIR-120, Aviation Safety - Aircraft Certification Service, Aircraft Engineering Division
- Description
-
Establishes an acceptable means, but not the only means, of obtaining airworthiness approval of an airborne vertical navigation system for use under visual flight rules (VFR) and instrument flight rules (IFR) within the conterminous United States, Alaska and surrounding U.S. waters.
- Content
-
- Signature.pdf (PDF)
- Appx1-3.pdf (PDF)