COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Partenavia P68 Series Aeroplanes AD/P68/12 Propeller Control Rod End - Inspection and Replacement Applicability: All models P68 and P68B with S/Nos. below 160. Document: Partenavia SB No. 37, Revision 1. 11/78 Compliance: Within 50 hours time in service after 17 October 1978 and thereafter at intervals not exceeding 50 hours time in service until Part 2 of Partenavia SB No. 37, Revision 1 is completed.