COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Victa and A.E.S.L. Airtourer Series Aeroplanes AD/VAT/39 Canopy Third Rail - Inspection and Modification 6/75 Applicability: All models. Document: Aerospace Airtourer SB No. 034. Compliance: Before 1 August 1975.