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-205/2 Main Landing Gear - Inspection 2/71 Applicability: Models S205-18/F, -18/R, -20/F, -20/R, -22/R and all S208 series. Document: SIAI Marchetti SB 205B27. Compliance: Visual inspection: Before first flight after 17 December 1970 and thereafter at intervals not exceeding 50 hours time in service. Penetrant inspection: Within 50 hours time in service after 17 December 1970 and thereafter at intervals not exceeding 300 hours time in service.