COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Short SC7 (Skyvan) Series Aeroplanes AD/SC7/3 Flap - Aileron Shroud Attach Lugs - Modification 12/69 Applicability: All models of Series 3. Document: Short SB No. 57-51. Compliance: Within 100 hours time in service after 23 January 1970.