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/3 Wing/Fuselage Attachment Spigot Bush - Inspection 3/85 Applicability: All models with S/Nos referenced in British Aerospace Jetstream S.B. 57-A-JA- 840917. Requirement: British Aerospace Alert Service Bulletin 57-A-JA-840917. Compliance: As per requirement document. Background: The manufacturer reports a case of a repair bush becoming dislodged on an aircraft in service.