Boeing 747 Series Aeroplanes
Boeing 747 Series Aeroplanes
Boeing 747 Series Aeroplanes
| AD/B747/314 Amdt 2 | Aft Pressure Bulkhead Web | 8/2009 |
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| Applicability: | Model 747-100, -100B, -100B SUD, -200B, -200C, -200F, -300, -400, -400D, -400F, 747SP and 747SR series aircraft; except those aircraft that have been converted to a Model 747-400 LCF configuration. |
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| Requirement: | Action in accordance with the technical requirements of Corrected FAA AD2009-04-06 Amdt 39-15812. |
| Note: Boeing Alert Service Bulletins 747-53A2482 original issue or 747-53A2482 Revision 1, or later FAA approved revision, refers. | |
| Compliance: | As specified in the Requirement document, with a revised effective date of30 July 2009. |
| This Amendment becomes effective on 30 July 2009. | |
| Background: | The FAA required certain actions to detect and correct the propagation of fatigue cracks in the vicinity of ‘oil cans’ on the web of the aft pressure bulkhead, which could result in rapid decompression and over-pressurisation of the tail section, and consequent loss of control of the aircraft.Amendment 1 required a reduced compliance time for the initial detailed inspection, and revised applicability.Amendment 2 is issued in response to a corrected FAA AD, which corrects the text of paragraphs (i) and (j) of the AD. |
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David Villiers
Delegate of the Civil Aviation Safety Authority
18 June 2009