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AD/B747/371 - Overhead Lateral Shear Beam Aft of Door 5
Boeing 747 Series AeroplanesBoeing 747 Series Aeroplanes
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Boeing 747 Series Aeroplanes
| AD/B747/371 | Overhead Lateral Shear Beam Aft of Door 5 | 3/2008 |
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| Applicability: | Model 747-400 and 747-400D series aircraft; as identified in Boeing Special Attention Bulletin 747-53-2498 original issue, or later FAA approved revision. |
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| Requirement: | Action in accordance with the technical requirements of FAA AD 207-25-18 Amdt 39-15300. |
| Compliance: | As specified in the Requirement document, with a revised effective date of13 March 2008. |
| This Airworthiness Directive becomes effective on 13 March 2008. | |
| Background: | The FAA received a report indicating that the overhead lateral shear beam aft of main entry door number 5 reacts to certain loads from the weight of the centre stowage bins of zone E, and additional loads. This Directive is intended to prevent detachment of the centre stowage bins of zone E at forward load levels less than 9g during an emergency landing. |
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David Villiers
Delegate of the Civil Aviation Safety Authority
30 January 2008