AD 92-02-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 747-400 Series | Airworthiness Directives; BOEING Model 747-400 Series Airplanes |
| aircraft | The Boeing Company | 747-400D Series | Airworthiness Directives; BOEING Model 747-400 Series Airplanes |
Unsafe Condition
Damaged or short oxygen hoses below the oxygen mask stowage boxes could cause pilot incapacitation during an emergency situation requiring supplemental oxygen.
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Required Actions
Inspect the captain's and first officer's oxygen hoses below the oxygen mask stowage boxes per Boeing Alert Service Bulletin 747-35A2075, Revision 1. Replace damaged or short hoses before further flight.
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Compliance Time
within the next 30 days after the effective date of this AD, unless accomplished previously
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Affected Aircraft
Boeing Model 747-400 series airplanes listed in Boeing Alert Service Bulletin 747-35A2075, Revision 1, dated September 19, 1991
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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