COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 106 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Franklin Piston Engines AD/FK-P/3 Engine Drive Fuel Pump - Inspection NK Applicability: Model 6A-350-C1 with S/Nos 52501 and subsequent and Model 6A-335-B1A with S/Nos 56001-3 and subsequent fitted with fuel pumps Part No 20574. Requirement: Franklin SB No 114. Compliance: Part 1. Inspection of Pump Diaphragm. Within 5 hours time in service after 6 March 1972 and thereafter at intervals not exceeding 100 hours time in service. Part 2. Inspection for Fuel Leaks. At intervals not exceeding 50 hours time in service after 6 March 1972. Note: Inspection for fuel leaks as per Part 2 may be carried out and certified by the pilot.