COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Bell Helicopter Textron 205 Series Helicopters AD/BELL 205/10 205A/A1 Tail Boom Vertical Fin Forward - Inspection and Modification 5/71 Applicability: All 205A and 205A-1 models. Document: Bell SB No. 205A-6. Compliance: For Part 1 of compliance document - at each daily or overnight inspection. For Part 2 of compliance document - within 100 hours time in service after 2 May 1971. Federal Register of Legislative Instruments F2006B04355