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-205/34 Amdt 1 Wing Rear Spar - Inspection 3/84 Applicability: All models S205-18/F, S205-20F; S205-18/R, S205-20/R, S205-22/R, S208, S208A. Requirement: SIAI-Marchetti S.B. No. 205B57. Compliance: Unless already accomplished, before further flight and thereafter at intervals not exceeding 50 hours time in service. Background: a. The manufacturer has received reports of cracking in the wing rear spar at the locations described above. b. This Directive has been amended to reflect the revised Aircraft Applicability and Requirement Document reissue.