Document ID: chunk:federal_register_of_legislation:F2008L01626:body:0:p2
Version: federal_register_of_legislation:F2008L01626
Segment Type: other
Provision Reference: 
Character Range: 2911–3673

1,200 flight hours, 2,400 flight cycles, or 12 months, whichever occurs first.

                2. Unless already accomplished, within 90 days after 5 June 2008.
             This Airworthiness Directive becomes effective on 5 June 2008.
Background:  There have been reports of inter-rivet cracking on several wing front spar adapter assemblies (part number C6WM1027-1) on the horizontal and vertical flanges.  It was determined that the cracking was caused by stress corrosion in the short transverse grain initiated by local riveting induced stress.  This Directive mandates modification and inspection of the wing front spar adapter fitting and replacement of cracked fittings.

David Villiers
Delegate of the Civil Aviation Safety Authority

21 April 2008