COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Beechcraft 200 (Super King Air) Series Aeroplanes AD/BEECH 200/4 Nacelle Fuel Vent Float Valve 12/75 Applicability: Model 200 with S/Nos BB-2 to BB-71. Requirement: Action in accordance with Beechcraft SI No 0772-295. Compliance: Within 25 hours time in service after 21 November 1975.