COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Beechcraft 90 and 65-90 (King Air) Series Aeroplanes AD/BEECH 90/16 Rudder Spar and Hinges - Inspection and Modification Applicability: Models 65-90, 65-A90 and B90 with S/Nos. LJ-1 to LJ-428. Document: Beechcraft SI No. 0101-135. 5/69 Compliance: 1. Inspection within 100 hours' time in service after 12 May 1969 and thereafter at intervals not exceeding 100 hours' time in service until modified. 2. Modify before 1 August 1969.