AD 2001-24-29
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 747 | Airworthiness Directives; Boeing Model 747 Series Airplanes |
Unsafe Condition
Chafing between the oxygen hose and adjacent electrical wire bundles at certain passenger service units, which could result in arcing of a chafed wire bundle and consequent burn-through of the oxygen hose, with the arcing potentially representing an ignition source in an oxygen-enriched environment.
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Required Actions
Perform a one-time detailed visual inspection for chafing between oxygen hoses and electrical wire bundles at specified passenger service units. If chafing is found, take corrective actions, including rerouting or reorienting the oxygen hose to ensure a minimum of 2 inches clearance between the hose and electrical wire bundles.
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Compliance Time
Within 18 months after the effective date of this AD.
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Affected Aircraft
Boeing Model 747 series airplanes, as listed in Boeing Alert Service Bulletin 747-35A2035, Revision 1, dated July 22, 1999; certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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