AD 2019-25-12
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
The low-pressure oxygen flex hoses in the gaseous passenger oxygen system can potentially be conductive, which can cause the flex hoses to melt or burn and result in an oxygen-fed fire in the passenger cabin.
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Required Actions
Replacing the low-pressure oxygen flex hoses with new non-conductive low-pressure oxygen flex hoses in the gaseous passenger oxygen system in airplanes equipped with therapeutic oxygen, and adding instructions for Group 4 airplanes.
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Compliance Time
Within 50 flight hours
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Affected Aircraft
The Boeing Company Model 777-200 and -300ER series airplanes, Configuration 2, Group 4.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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