FAA AC 20-112 : 1981
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
AIRWORTHINESS AND OPERATIONAL APPROVAL OF AIRBORNE SYSTEMS TO BE USED IN LIEU OF A GROUND PROXIMITY WARNING SYSTEM(S) (GPWS)
11-16-2012
01-12-2013
1 PURPOSE
2 RELATED READING MATERIAL
3 BACKGROUND
4 GENERAL GUIDELINES
5 AIRWORTHINESS CONSIDERATIONS
6 OPERATIONAL CONSIDERATIONS
7 DISCUSSION
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