COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Mooney M20 Series Aeroplanes AD/M20/49 Fuel Selector Valve 13/95 DM Applicability: All M20K series aircraft fitted with Gerdes P/N A-2580 fuel selector valve. Requirement: Unless previously carried out action in accordance with Mooney Aircraft Corporation Service Bulletin M20-256. Note: FAA AD 95-18-12 Amdt 39-9359 refers. Compliance: Within 50 hours times in service from 1 November 1995. Background: The manufacturer has advised of a Gerdes selector valve malfunction which could result in an unscheduled landing of the aircraft.