COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Fokker F27 Series Aeroplanes AD/F27/107 Inboard Aileron Hinge Bolt Retention - Inspection and Replacement Applicability: All model F27 with S/Nos. 10105 to 10635. Document: Fokker SB F27/57-58. Note: RLD AD BLA 83-20-57 refers. Compliance: Before 1st January 1984. 8/83 Background: Restricted aileron movement was reported due to migration of hinge bolt and bush.