AD 2000-11-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 747 and 767 | Airworthiness Directives; Boeing Model 747 and 767 Series Airplanes Powered by General Electric Model CF6-80C2 Series Engines |
| engine | General Electric | CF6-80C2 Series | Airworthiness Directives; Boeing Model 747 and 767 Series Airplanes Powered by General Electric Model CF6-80C2 Series Engines |
Unsafe Condition
Engine flameout due to use of JP-4 or Jet B fuel during certification testing on an engine with dribble flow fuel nozzles (DFFN) installed.
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Required Actions
Revise the FAA-approved Airplane Flight Manual (AFM) to prohibit the use of certain fuels. Replace an existing placard with a new placard, or replace all dribble flow fuel nozzles (DFFN) with standard fuel nozzles, which terminates the requirements for the new placard and AFM revision.
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Compliance Time
Before further flight
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Affected Aircraft
Boeing Model 747 and 767 series airplanes powered by General Electric Model CF6-80C2 series engines.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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