AD 2013-08-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
The oxygen system flex line separating from the hard line due to a missing clamshell coupler, which could cause an oxygen leak and a drop in the oxygen system pressure, resulting in improper flow of oxygen through the passenger masks and injury to passengers if emergency oxygen is needed.
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Required Actions
Perform a detailed inspection of certain areas of the airplane oxygen system to ensure clamshell couplers are installed and fully latched, and perform and meet the requirements of the low pressure leak test.
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Compliance Time
Within 36 months after the effective date of this AD.
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Affected Aircraft
The Boeing Company Model 777-200, -200LR, -300, -300ER, and 777F series airplanes, certificated in any category, as identified in Boeing Special Attention Service Bulletin 777-35-0024, dated September 1, 2011.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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