Boeing 747 Series Aeroplanes
Boeing 747 Series Aeroplanes
Boeing 747 Series Aeroplanes
| AD/B747/322 Amdt 1 | Strut Front Spar Chord Assembly | 25/2009 |
|---|
| Applicability: | Model 747-100, -100B, -100B SUD, -200B, -200C, -200F, -300, 747SP, and 747SR series aircraft listed in Boeing Alert Service Bulletin 747-54A2224 Rev 1, dated16 November 2006 or later FAA-approved revision.Note: This Directive is only applicable to aircraft equipped with Pratt & Whitney or General Electric engines as nominated in the Alert Service Bulletin. |
|---|---|
| Requirement: | Action in accordance with the technical requirements of FAA AD 2007-01-15 Amdt 39-14887. |
| Compliance: | At the intervals specified in FAA AD 2007-01-15. If not already accomplished, prior to initial issue of an Australian certificate of airworthiness. |
| This Amendment becomes effective on 18 December 2009. | |
| Background: | The FAA received a report indicating the front spar chord assembly for strut No. 3 fractured on a Model 747-200B aircraft. Investigation revealed the fitting fractured as a result of fatigue at a critical stress area. Fracture of the front spar chord assembly will result in loss of the strut upper link load path.The original issue of this Directive specified FAA AD 2004-25-05 and Alert Service Bulletin 747-54A2224 at its initial issue.Amendment 1 specifies FAA AD 2007-01-15, and Alert Service Bulletin747-54A2224 at Rev 1. |
View image in the official source
William David
Delegate of the Civil Aviation Safety Authority
08 December 2009