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/7 Lower Tailplane Shroud - Modification 5/63 Applicability: Victa Airtourer 100 and 115 with S/Nos. 1 to 13. Document: Victa SB No. 8. Compliance: Before 1 September 1971.