AD 2021-02-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | Helicopters Model EC 155B and EC155B1 | Airworthiness Directives; Airbus Helicopters |
| aircraft | Aviat | Various | Airworthiness Directives; Airbus Helicopters |
Unsafe Condition
Failure of the affected main gearbox housing, possibly resulting in reduced control of the helicopter.
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Required Actions
Comply with all required actions and compliance times specified in, and in accordance with, European Union Aviation Safety Agency (EASA) AD 2020-0043, dated March 2, 2020 (EASA AD 2020-0043).
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Compliance Time
Within 10 hours time-in-service after the effective date of this AD.
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Affected Aircraft
All Airbus Helicopters Model EC 155B and EC155B1 helicopters, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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