AD 2021-11-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | Helicopters Model EC225LP | Airworthiness Directives; Airbus Helicopters |
| aircraft | Aviat | Various | Airworthiness Directives; Airbus Helicopters |
Unsafe Condition
inadvertent opening of the P 2.4 valve of the MGB emergency lubrication (EMLUB) system, which results from MGB pressurization by compressed air produced by the engine during starting in response to a signal from the EMLUB electronic control card.
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Required Actions
modifying the electrical control circuit of the MGB EMLUB system, and repetitively functional testing the MGB EMLUB system, and if there is a discrepancy, accomplishing corrective action(s).
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Compliance Time
Within 50 flight hours
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Affected Aircraft
all Airbus Helicopters Model EC225LP helicopters, 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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