COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Mooney M20 Series Aeroplanes AD/M20/25 Dukes Electric Landing Gear Actuator - Inspection 11/76 Applicability: All model M20 series fitted with Dukes P/N 4196-00-1C electric landing gear actuator. Document: Mooney SB No. 190, Part 1. Compliance: Within 100 hours time in service after 31 December 1976 and there- after at intervals not exceeding 200 hours time in service.