ADF/AAP 7001.053(AM1), TECHNICAL AIRWORTHINESS MANAGEMENT MANUAL AUSTRALIAN DEFENCE FORCE AUSTRALIAN AIR PUBLICATION (6 JAN 2005)., This publication, although issued as an Australian Air Publication (AAP), is authenticated by the ADF Airworthiness Authority because the content has Tri-Service significance and authority. The single Service markings have been replaced by their Tri-Service equivalents as part of the formation of a proper, structured, binding Defence Publication System for airworthiness, aircraft, aircraft related equipment and other ‘air’ matters under the authority of DI(G) ADMIN 20-31.