COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Partenavia P68 Series Aeroplanes AD/P68/39 Fuel Selector Valve 4/94 DM Applicability: All P68 series aircraft. Requirement: Unless previously carried out action in accordance with Partenavia Service Bulletin No 90. Note: RAI AD 94-014 refers. Compliance: Prior to 18 February 1994. Background: The manufacturer has advised that loss of a key from a fuel selector keyway has been reported to them.