COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Instruments and Automatic Pilots
AD/INST/35 Collins APP-80/80A Autopilot Panel 11/88
Applicability: All APP-80 (622-0141-001 through -030) and APP-80A (622-3109-001 through - 030) autopilot panels which do not have SB 15 marked out on the unit mod plate.
Requirement: Action in accordance with Collins APP 80/80A SB 15. Compliance: Prior to 30 June 1989.
Background: Certain loading conditions on the +28V DC Mode Volts No 1 and +28V DC Mode Volts No 2 lines could cause smoke to be emitted from resistors on the autopilot panel.