Document ID: chunk:federal_register_of_legislation:F2006B09258:body:0:p2
Version: federal_register_of_legislation:F2006B09258
Segment Type: other
Provision Reference: 
Character Range: 3077–4710

6 October 2004.

            B.1. At the intervals specified in Requirement A. applicable Temporary Revision of Airworthiness Limitations List of the Maintenance Program Manuals.

B.2.a.    Within 5,000 flight hours after 6 October 2004 but not later than 60,000 flight cycles, whichever occurs first.

B.2.b.    Within 5,000 flight hours after 6 October 2004 but not later than 60,346 flight cycles, whichever occurs first.

B.3.a.    Within 12 months or 2,500 flight cycles after 6 October 2004, whichever occurs first.

B.3.b.    Within 12 months or 2,500 flight cycles after 6 October 2004, whichever occurs first.

            This Airworthiness Directive becomes effective on 6 October 2004.

            Background: The longitudinal skin joints in the fuselage pressure shell for DHC 8 aircraft have been identified as principal structural elements where visual inspection has been established as an inspection method. However, it was recently discovered that portions of the skin joints could not be properly inspected by visual means as these locations are hidden by other structures. Revisions have been made to the Airworthiness Limitations List of the DHC 8 Maintenance Program Manuals to implement newly developed eddy current inspection procedures, along with new and revised inspection requirements to ensure that the entire length of the fuselage longitudinal skin joints are properly inspected to prevent failure.

 David Villiers
 Delegate of the Civil Aviation Safety Authority 29 September 2004

 The above AD is notified in the Commonwealth of Australia Gazette on 6 October 2004.