AD 2004-11-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Eurocopter | France Model EC 130 B4 and AS 350 B3 | Airworthiness Directives; Eurocopter France Model EC 130 B4 and AS 350 B3 Helicopters |
Unsafe Condition
Damage to the fuel transfer line due to interference associated with vibrations and chafing of the bleed valve air exhaust duct, which could result in a hole in the fuel transfer line, fuel leaking into the engine compartment, and creating a fire hazard that could lead to a fire and a subsequent forced landing.
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Required Actions
Inspect the fuel transfer line for chafing and replace it if the depth of the deepest wear mark exceeds specified limits. Inspect the air exhaust duct for a hole and replace it if found. Measure clearances between the fuel transfer line and air exhaust duct, and reposition the air exhaust duct if clearances are insufficient.
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Compliance Time
Within 10 hours time-in-service, unless accomplished previously.
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Affected Aircraft
Eurocopter France Model EC 130 B4 helicopters with an optional engine flushing system installed, and AS 350 B3 helicopters with an optional engine flushing system installed and modified in accordance with MOD 073098, 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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