COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Beechcraft 36 (Bonanza) Series Aeroplanes AD/BEECH 36/7 Seat Track Screws 7/70 Applicability: Model 36 and A36 with S/Nos. E-1 to E-201. Requirement: Action in accordance with Beechcraft SI No. 0343-314. Compliance: Within 100 hours time in service after 31 July 1970.