AC 20-172B

Advisory circular · Airworthiness Approval for ADS-B In Systems and Applications

Approved
May 20, 2015
Last reviewed
July 7, 2017
Cancels
AC20-172A
Family
AC 20-172 · 3 versions
Revision
B
14 CFR parts
1, 23, 25, 91

Guidance, not mandatory unless a rule or AD requires it. DRS record last changed October 23, 2026.

Show pages 37–48

_________________________________________________________________ _________________________________________________________________ _________________________________________________________________ ________________________________________________________________ Appendix 1. Advisory Circular Feedback Information If you have comments or recommendations for improving this advisory circular (AC), or suggestions for new items or subjects to be added, or if you find an error, you may let us know about it by using this page as a template and 1) emailing it to 9-AWA-AVS-AIR500­ Coord@faa.gov or 2) faxing it to the attention of the AIR Directives Management Officer at 202-267-3983.

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(attach separate sheets if necessary) In a future change to this AC, please include coverage on the following subject: (briefly describe what you want added, attaching separate sheets if necessary) Name: __________________________ 48