COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES SIAI Marchetti S205 and S208 Series Aeroplanes AD/SM-205/4 Fuselage - Reinforcement 3/71 Applicability: All S205 series with S/Nos. 001 to 4-173 except 103, 109, 217, 348, 351, 369, 4-101, 4103, 4-121, 4-127, 4-137, 4-144, 4-149, 4-150, 4-151, 4-152, 4-153, 4-168 and 4- 172. Document: SIAI Marchetti SB 205B20. Compliance: Before 31 March 1971.