AD 2013-03-19
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
Damaged wiring for the fuel boost pumps and override pumps could cause electrical arcing that could puncture the conduit containing the wire, and result in a fuel tank explosion or a fire adjacent to the fuel tank.
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Required Actions
Replace the wiring for the fuel boost pumps and override pumps, install Teflon sleeving over the wiring, and perform a general visual inspection of the area around each fuel boost pump and override pump. The repetitive inspection interval to detect damage of the wiring or evidence of a fuel leak has been reduced.
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Compliance Time
Within 1 year or 4,000 flight hours after October 1, 2001, whichever occurs first.
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Affected Aircraft
The Boeing Company Model 707-100 long body, -200, -100B long body, and -100B short body series airplanes; Model 707-300, -300B, -300C, and -400 series airplanes; and Model 720 and 720B series airplanes, certificated in any category, line numbers 1 through 941 inclusive.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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