AD 2021-05-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | Helicopters Model EC225LP | Airworthiness Directives; Airbus Helicopters |
Unsafe Condition
A twisted fuel supply hose can cause a decrease of the LH engine power when accelerating to the power setting corresponding to One Engine Inoperative (OEI) power, and subsequent reduced control of the helicopter.
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Required Actions
Visually inspect the LH fuel supply hose for twisting, and if needed, borescope inspect the entire length of the inside of the fuel supply hose for twisting. Depending on the inspection results, reinstall or remove the fuel supply hose from service. Modify the helicopter by removing from service LH fuel supply hose P/N 704A34416087 and installing the improved LH fuel supply hose P/N 704A34416101. Prohibit installing a certain part-numbered LH fuel supply hose on any helicopter unless that LH fuel supply hose is installed by following certain procedures described in the manufacturer's service bulletin.
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Compliance Time
Before further flight
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Affected Aircraft
Airbus Helicopters Model EC225LP helicopters with a LH fuel supply hose part number (P/N) 704A34416087 installed.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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