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20-172 - Airworthiness Approval for ADS-B in Systems and Applications (Cancelled)

Cancellation Notes
AC 20-172A
Date Cancelled
March 23, 2012
Date Issued
January 11, 2011
Responsible Office
AIR-130,  Aviation Safety - Aircraft Certification Service, Aircraft Engineering Division

This advisory circular (AC) provides guidance for the initial and follow-on installations of Automatic Dependent Surveillance - Broadcast (ADS-B) In systems supporting ground and airborne traffic display applications. These applications are defined in TSO-CI95, Avionics Supporting Automatic Dependent Surveillance - Broadcast (ADS-B) Aircraft Surveillance Applications (ASA). The display applications discussed in this AC are designed to support basic situational awareness only. As more advanced applications mature, this AC will be updated to reflect those added to TSO-C 195.