Boeing 747 Series Aeroplanes
Boeing 747 Series Aeroplanes
Boeing 747 Series Aeroplanes
| AD/B747/349 Amdt 1 | Crew Oxygen Cylinder Support | 6/2008 |
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| Applicability: | Model 747-400 series aircraft, as identified in Boeing Special Attention Service Bulletin 747-35-2114 Revision 1, or later FAA approved revision. |
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| Requirement: | Action in accordance with the technical requirements of FAA AD 2006-12-10 R1 Amdt 39-15485. |
| Compliance: | As specified in the Requirement document, with a revised effective date of 5 June 2008. |
| This Amendment becomes effective on 5 June 2008. | |
| Background: | The FAA received a report indicating that certain oxygen cylinder supports may not have been properly heat-treated. The actions required by this Directive are intended to prevent failure of the oxygen cylinder support under the most critical flight load conditions, which could cause the oxygen cylinder to break loose and cause a loss of oxygen for the flight crew. Also, a fire hazard could result from oxygen leakage.Amendment 1 is issued in response to a revision of the related FAA AD, which expands the applicability to include certain aircraft that are not on the US Register. |
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David Villiers
Delegate of the Civil Aviation Safety Authority
24 April 2008