Document ID: chunk:federal_register_of_legislation:F2006B09219:body:0:p2
Version: federal_register_of_legislation:F2006B09219
Segment Type: other
Provision Reference: 
Character Range: 2959–4651

inspection becomes due in less than 12 months after 24 February 2000, carry out the threshold inspection before 24 February 2001.

             2. Within 5 years or 20,000 flight cycles after 28 December 2000, whichever occurs first.

            The compliance times for Requirement 1 remains unchanged by this issue. This Amendment becomes effective on 28 December 2000.
            Background: Corrosion of flap carriage hook roller shafts Pre Mod 8Q100429, were found on several in-service aircraft. An investigation by Bombardier identified deficiencies in the manufacturing process that may have resulted in inadequate corrosion protection of some hook roller shafts. If not addressed, cracks initiating from the corrosion sites on the hook roller shafts can degrade the structural integrity of the flap system.

            Amendment 1 clarified that the inspection schedule for the flap carriage hook roller shafts did not amend the inspection schedule for the other flap carriage components that are associated with the same inspection Task Number.

            Amendment 2 is issued in response to a revision of the related Transport Canada AD which adds P/N 85750362-105 flap carriage hook roller shafts to the inspection and replacement requirements, and updates the TR status of the AWL of the DHC-8 Maintenance Manual.

            Amendment 1 of this Airworthiness Directive became effective on 24 February 2000. The original issue of this Airworthiness Directive became effective on 15 July 1999.

 David Alan Villiers
 Delegate of the Civil Aviation Safety Authority 8 November 2000

 The above AD is notified in the Commonwealth of Australia Gazette on 22 November 2000.