AD 2001-24-29

final rule
Data completeness: 70%

Airworthiness Directives; Boeing Model 747 Series Airplanes

AD Number
2001-24-29
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. 2001-NM-217-AD
FR Citation
66 FR 64105

Applicability

TypeManufacturerModelDetails
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.

AI-generated summary from the source AD text. Verify against the official source before acting.

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.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Within 18 months after the effective date of this AD.

AI-generated summary from the source AD text. Verify against the official source before acting.

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.

AI-generated summary from the source AD text. Verify against the official source before acting.

Source: Official FAA Source ↗

Retrieved: Apr 6, 2026

Rights: U.S. Government Public Domain

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