Draft Advisory Circulars

Draft Advisory Circulars Open for Comment

AC43-14 (draft revision 5) Avionics, Installations: Acceptable Technical Data (PDF 480 KB)

Revision 5 intends to update the guidance on installation of TSO C-126 ELTs in Appendix 2 to this advisory circular; and makes general editorial changes.

Comments close 30 Apr 2018

Please forward comments to:

Charlie Morris
Airworthiness Engineer (Avionics)


AC43-11 (draft revision 3) Aircraft Emergency Locator Systems (PDF 76 KB)

Revision 3 intends to update the emergency locator transmitter (ELT) testing requirements.

Comments close 30 Apr 2018

Please forward comments to:

Charlie Morris
Airworthiness Engineer (Avionics)


 AC139-8 (draft revision 3) Aerodrome Design: Heliports (PDF 767 KB)

Draft revision 3 intends to replace non-ICAO abbreviation for touchdown and lift-off area, TALO, with the correct abbreviation, TLOF.

Comments close 16 Mar 2018

Please forward comments to:

Nick Jackson
Senior Aeronautical Services Officer, Aeronautical Services Unit


AC19-1 (draft revision 1) Test Pilot Approvals (PDF 243 KB)

Draft revision intends to replace advisory circular AC19-1 Revision 0.

Comments close 22 Jan 2018 now extended to 22 Feb 2018

Please forward comments to:

Pete Sutherland
Technical Programme Manager, Aircraft Certification Unit


Draft Advisory Circulars Closed for Comment

Airworthiness Engineer (Avionics)