Boeing 737 Series Aeroplanes
Boeing 737 Series Aeroplanes
Boeing 737 Series Aeroplanes
| AD/B737/310 | Body Station 178 BulkheadVertical Beam Webs | 13/2007 DM |
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| Applicability: | Model 737-100, -200, -200C, -300, -400, and -500 series aircraft, as identified in Boeing Service Bulletin 737-53A1225 Revision 1, or later FAA approved revision. |
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| Requirement: | Action in accordance with the technical requirements of FAA AD 2007-03-03 Amdt 39-14914. |
| Compliance: | As specified in the Requirement document, with a revised effective date of26 October 2007. |
| This Airworthiness Directive becomes effective on 26 October 2007. | |
| Background: | The FAA received reports of numerous cracks in the vertical beam webs of the body station (BS) 178 bulkhead. Such cracking, unless detected and corrected, could result in loss of structural integrity of the BS 178 bulkhead, and consequently could impair the operation of the control cables for the elevators, speed brakes, and landing gear, or could cause the loss of cabin pressure. |
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David Villiers
Delegate of the Civil Aviation Safety Authority
24 October 2007