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20-112 - Airworthiness and Operational Approval of Airborne Systems to be used in Lieu of a Ground Proximity Warning System(s) (GPWS) (Cancelled)

Cancellation Notes
Cancellation Memo (Attached AC 20-112)
Date Cancelled
June 21, 2013
Date Issued
February 19, 1981
Responsible Office
AIR-120,  Aviation Safety - Aircraft Certification Service, Aircraft Engineering Division

Provides information and guidance regarding airworthiness and operational approval of airborne equipment/systems in accordance with FAR 135.153(b) and (c).