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-23/46 Exhaust System - Inspection and Modification 7/71
Applicability: Models PA-23-250 and PA-E23-250 with S/Nos. 27-2505 to 27-4653 excepting 27-4560, 27-4576, 27-4620 and 27-4651.
Document: Piper SB No. 319.
Compliance: Within 100 hours time in service after 30 July 1971.