Document ID: chunk:federal_register_of_legislation:F2007L00334:body:0:p2
Version: federal_register_of_legislation:F2007L00334
Segment Type: other
Provision Reference: 
Character Range: 2923–5228

calendar years.

             Part B - Inspection using Eddy Current method.

                  For aircraft operating in a salt water environment:

                  I. For aircraft which have complied with Amendment 3 of this Directive, within one calendar year since the previous inspection, thereafter at intervals not to exceed two calendar years; and

                  II. For aircraft which have not complied with Amendment 3 of this Directive, within 100 flight hours or one calendar year after 15 March 2007, whichever occurs first, and thereafter at intervals not to exceed two calendar years.

                  For all other aircraft:

                  I. For aircraft which have complied with Amendment 3 of this Directive, within two calendar years since the previous inspection, and thereafter at intervals not to exceed five calendar years; and

                  II. For aircraft which have not complied with Amendment 3 of this Directive, within 100 flight hours or one calendar year after 15 March 2007, whichever occurs first, and thereafter at intervals not to exceed five calendar years.

             If cracks are detected during any Part A or Part B inspection required by this Directive, before further flight, remove the affected strut from service.
             This Amendment becomes effective on 15 March 2007.
Background:  A report was received of stress corrosion cracking occurring in the wing lift strut lower clevis fitting.  This Directive requires certain actions in order to preclude failure of the wing lift strut.

             Amendment 1 expanded the part number applicability and removed the serial number range and date of manufacture provisions.

             Amendment 2 replaced the dye penetrant inspection with the fluorescent penetrant inspection.

             Amendment 3 allowed a longer inspection interval for aircraft which are not operated in a salt water environment.

   Amendment 4 is issued in response to a revision of the related Transport Canada AD, which allows operators the option of continuing with the current inspection intervals or incorporating the improved alternate inspection method, to permit an increase in inspection intervals.

David Villiers
Delegate of the Civil Aviation Safety Authority

2 February 2007