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-38/5 Amdt 1 Rudder Hinge Bracket Assembly, Lower - Modification 3/80 Applicability: All model PA-38-112 with S/Nos. 38-78A0001 to 38-80A0063. Document: Piper SB No. 613A. Compliance: Unless already accomplished to previous issue of this AD, within 100 hours time in service after 31 March 1980.