COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Piper PA-23 (Apache and Aztec) Series Aeroplanes
AD/PA-23/62 Engine Lower Air Scoops and Fairings - Fluid
Drainage Provision
Applicability: All PA-23 series fitted with Airesearch turbochargers.
7/74
Requirement: Provide drainage holes in the engine lower air scoops and fairings in accordance with Piper SL No. 705.
Compliance: Within 100 hours time in service after 31 July 1974.