COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Beechcraft 35 (Bonanza) Series Aeroplanes AD/BEECH 35/26 Fuel Selector Valve 12/69 Applicability: All models fitted with fuel unit assembly P/N 35-924065. Requirement: Action in accordance with Beechcraft SI No. 0243-289. Compliance: Within 100 hours time in service after 23 December 1969.