AEA Says The Advisory Circular Revision Contains Significant Changes

The FAA has published revision B to AC 20-165B, which provides guidance for the installation and airworthiness approval of Automatic Dependent Surveillance - Broadcast (ADS-B) Out systems in aircraft.

AEA reports that the revision to AC 20-165 contains a number of significant changes.
 
First, the AC has now sunset the criteria that ADS-B Out transmitters and position source be automatically treated as a major alteration. The AC does still require the initial approvals, but within specific limitation allows ADS-B Out installations to be treated as "normal" avionics. As such, the evaluation of major/minor is normal.
 
Second, the AC highlights the follow-on installation criteria of a previously approved system.
 
Third, the AC contains the criterion for reuse of flight test data for follow-on installations of approved systems.

The Aircraft Electronics Association supports the FAA's aggressive sunset of the special provision for ADS-B Out and encourages the membership to thoroughly read AC 20-165B.

(Source: AEA news release)

FMI: www.aea.net, AC Revisions