COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES British Aerospace BAe 3100 (Jetstream) Series Aeroplanes AD/JETSTREAM/10 Wing Fuel Tank Access Panels 11/85 Applicability: HP 137 Mk 1, Jetstream Series 200 aircraft and Jetstream Series 3100 aircraft constructors number 601 to 637 inclusive. Requirement: British Aerospace Service Bulletin 57-JM5232. Compliance: As per Requirement Document. Background: The manufacturer has found evidence of the presence of feather edges at the countersink holes into the wing skin. This AD introduces an inspection at all wing access panel locations to check for feather edges and indications of cracks at the wing skin holes.