AD 2001-24-32
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 747-100 | Airworthiness Directives; Boeing Model 747-100, 747-200B, 747-200C, 747-200F, 747SP, and 747SR Series Airplanes |
Unsafe Condition
Chafing of certain electrical wire bundles located behind the flight engineer's panel, which could result in smoke in the cockpit, and uncommanded discharge of fire extinguishing bottles for the No. 4 engine and consequent reduction of the ability to fight a fire in the No. 4 engine.
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Required Actions
Perform a one-time detailed visual inspection for chafing of wire bundles in the specified area. If chafing is found, repair the chafed wire bundles before further flight. If no chafing is found or after repair, modify the airplane by rerouting electrical wire bundle W530 and installing a caterpillar grommet on the flood light supports.
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Compliance Time
Within 12 months after the effective date of this AD.
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Affected Aircraft
Boeing Model 747-100, 747-200B, 747-200C, 747-200F, 747SP, and 747SR series airplanes; line numbers 001 through 310 inclusive; 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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