AD 2006-12-10 R1
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 747-400 Series | Airworthiness Directives; Boeing Model 747-400 Series Airplanes |
Unsafe Condition
Failure of the oxygen cylinder support under the most critical flight load conditions due to improper heat-treatment, which could cause the oxygen cylinder to come loose and leak oxygen.
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Required Actions
Inspect the support bracket of the crew oxygen cylinder installation to determine the manufacturing date marked on the support. Perform corrective action if necessary, including installation of properly heat-treated supports as specified in Boeing Special Attention Service Bulletin 747-35-2114.
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Compliance Time
Before further flight
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Affected Aircraft
Boeing Model 747-400 series airplanes identified in Boeing Special Attention Service Bulletin 747-35-2114, including additional airplanes added in Revision 1 dated June 7, 2007.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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