COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES S.L. Industries Commander 100 Series and Volair 10 Series Aeroplanes AD/AC-100/9 Fuel Grade Markings - Inspection and Modification 12/68 Applicability: Model 100 with S/Nos. prior to 301 and model 100-180 with S/Nos. 5001 to 5100. Document: Aero Commander Model 100 SB No. 1014. Compliance: Forthwith.