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-23/31 Rudder Trim Tab Control Rod - Modification
and Inspection
Applicability: Models PA-23 and PA-23-160 with S/Nos. 23-1 to 23-2046.
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Requirement: 1. Modify the forward end of the rudder trim tab control rod by replacing the existing cotter pin with a steel roll pin P/N 480-728 in accordance with Piper SL No. 407.
2. Inspect the rudder trim tab control rod in accordance with Piper SL No. 407.
3. Piper SL No. 407. Compliance: For para. 1 - Forthwith.
For para. 2 - At intervals not exceeding 100 hours time in service.