AD 2000-14-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 747 | Airworthiness Directives; Boeing Model 747 Series Airplanes |
Unsafe Condition
High fuel pressure has caused failures of certain fuel system components of the outboard engines, which could result in fuel leakage and lead to an engine fire.
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Required Actions
Inspect the part number of the fuel shutoff spar valve for the outboard engines. Replace certain valves with new ones or modify the spar valve body assembly. Inspect maintenance records to determine if the fuel shutoff spar valve for the outboard engines has ever been replaced, and take follow-on actions as required.
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Compliance Time
Before further flight
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Affected Aircraft
Boeing Model 747-100, -200, -300, -400, 747SP, and 747SR series airplanes, having line numbers 1 through 1006 inclusive, and powered by General Electric, Rolls-Royce, or Pratt & Whitney engines.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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