AD 2001-17-20
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 707 and 720 | Airworthiness Directives; Boeing Model 707 and 720 Series Airplanes |
Unsafe Condition
Damaged wiring for the fuel boost pumps and override pumps could cause electrical arcing, puncturing the conduit and resulting in an explosion or fire adjacent to the fuel tank.
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Required Actions
Replace the wiring for the fuel boost pumps and override pumps with new wiring, install Teflon sleeving on the wiring, and perform repetitive inspections to detect wiring damage or fuel leaks. Corrective actions, including finding and repairing fuel leaks, replacing wiring, conduit, or installing new Teflon sleeving, must be taken if electrical arcing, exposed copper wire, or fuel leaks are detected.
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Compliance Time
Within the compliance time specified in the referenced service bulletin, unless accomplished previously.
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Affected Aircraft
Boeing Model 707 and 720 series airplanes, line numbers 1 through 941 inclusive, 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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