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 90/42 Amdt 1 Fuselage Rear Bulkhead - Inspection 4/78 Applicability: All models 65-90, 65-A90, B90 and C90 with S/Nos. LJ-1 to LJ-711, and E90 with S/Nos. LW-1 thru LW-212. Document: Beechcraft SI No. 0755-103, Rev. 1. Compliance: Within 100 hours' time in service after achieving 500 hours' time in service and thereafter at intervals not exceeding 600 hours' time in service until modified in accordance with SI No. 0755-103 Rev. 1.