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AD/B747/355 - STA 2360 Aft Pressure Bulkhead Web Lap Joint
Boeing 747 Series AeroplanesBoeing 747 Series Aeroplanes
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Boeing 747 Series Aeroplanes
| AD/B747/355 | STA 2360 Aft PressureBulkhead Web Lap Joint | 3/2007 |
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| Applicability: | Model 747 -100, -100B, -100B SUD, -200B, -200C, -200F, -300, -400, -400D, -400F, 747SR, and 747SP series aircraft. |
|---|---|
| Requirement: | Action in accordance with the technical requirements of FAA AD 2007-02-24 Amdt 39-14911.Note: Boeing Alert Service Bulletin 747-53A2561 original issue, or later FAA approved revision, refers. |
| Compliance: | As specified in the Requirement document, with a revised effective date of15 March 2007. |
| This Airworthiness Directive becomes effective on 15 March 2007. | |
| Background: | The FAA received the results of analysis by the manufacturer that the radial lap splices of the STA 2360 aft pressure bulkhead are subject to widespread fatigue damage. Such cracking, unless detected and corrected, could join together from multiple sites to form cracks of critical length, and result in rapid decompression and loss of control of the aircraft. |
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David Villiers
Delegate of the Civil Aviation Safety Authority
1 February 2007