COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Gates Learjet 35 and 36 Series Aeroplanes AD/LEARJET 35/25 Flap Attachment Fittings 9/86 Applicability: All model Learjet 35 and 36 with Serial Numbers listed in the Requirement Document. Requirement: Inspect in accordance with Gates Learjet 35 S.B. 35/36-27-16. Compliance: Within 200 hours time in service after 30 September 1986. Background: Cracking of the flap attachment fitting has become evident in service. Failure of a flap attach fitting may result in an asymmetric flap condition.