AD 2021-10-18
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | Helicopters Deutschland GmbH | Airworthiness Directives; Airbus Helicopters Deutschland GmbH Helicopters |
| aircraft | Aviat | Various | Airworthiness Directives; Airbus Helicopters Deutschland GmbH Helicopters |
Unsafe Condition
Collective lever switch units having certain part numbers did not have retaining rings installed in the cable cut switch guard, which could cause inadvertent activation of the rescue hoist cable cut function, resulting in personal injury.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect collective lever switch units for discrepancies (missing retaining rings, incorrectly installed retaining rings, and a missing axis in the cable cut switch guard), do all applicable corrective actions, and mark affected parts, as specified in EASA AD 2020-0084.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 50 flight hours
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Affected Aircraft
Airbus Helicopters Deutschland GmbH Model MBB-BK117 D-2 helicopters, all serial numbers, having an affected part defined in European Union Aviation Safety Agency (EASA) AD 2020-0084.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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