AD 2008-10-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 747-400 | Airworthiness Directives; Boeing Model 747-400, -400D, and -400F Series Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Boeing Model 747-400, -400D, and -400F Series Airplanes |
Unsafe Condition
Potential for ignition sources inside fuel tanks caused by latent failures, alterations, repairs, or maintenance actions, which could result in a fuel tank explosion and consequent loss of the airplane.
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Required Actions
Revise the FAA-approved maintenance program by incorporating new airworthiness limitations (AWLs) for fuel tank systems. Conduct initial inspections of certain repetitive AWL inspections to phase them in, and repair if necessary.
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Compliance Time
Before further flight.
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Affected Aircraft
Boeing Model 747-400, -400D, and -400F series airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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