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/29 Amdt 5 Flap Torque Tube Universal Joints 13/93 Applicability: All HP137 Mk1, Jetstream Series 200, and Jetstream Series 3100 aircraft. All Jetstream Series 3200 aircraft up to and including constructors number 956. Requirement: Action in accordance with British Aerospace Mandatory Service Bulletins 27-A-JA 881041 Revision 2 and 27-JM 5313 Revision 2, or 27-JM 5322. Note: Accomplishment of Part 1 or Part 2 of BAe SB 27-JA920340, constitutes terminating action for the requirements of this Directive. Compliance: As specified in the requirement documents, with flying hours to count from previous certified compliance; until accomplishment of Part 1 or Part 2 of British Aerospace Service Bulletin 27-JA920340. This amendment is effective from 9 December 1993. Background: A failure of the flap torque shaft universal joint securing rivet occurred. This condition could have resulted in asymmetric flap deployment. Amendment 1 introduced an alternative modification (JM 5322) to suit a different joint configuration, and required inspection of joints that had already been modified. Amendment 3 upgraded 27-JM5313 to Rev 2 which revised a periodicity. Amendment 4 included the 3200 series. Amendment 5 is issued to introduce optional terminating action for this directive.