COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Piper PA-38 (Tomahawk) Series Aeroplanes AD/PA-38/10 Stabiliser/Elevator Leading Edge - Inspection and Modification Applicability: All models PA-38-112 with S/Nos. 38-78A0001 to 38-78A0400. Document: 1. Piper SB No. 607A, Part III; or 2. FAA AD 78-22-01, amendment 39-3323. 1/79 Compliance: Unless already accomplished, within 50 hours time in service after 20 November 1978.