AD 2021-11-09
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
composite failure of an M/R blade, which if not addressed could result in subsequent loss of control of the helicopter.
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Required Actions
Comply with all required actions and compliance times specified in, and in accordance with, EASA AD 2018-0061. Inspecting an M/R blade thimble area takes about 1 work-hour for an estimated cost of about $85 per M/R blade thimble, per inspection cycle. Repairing or replacing an M/R blade takes up to about 20 work-hours and parts cost up to about $23,100 for an estimated cost of up to $24,800 per blade.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the compliance times specified, unless already done.
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Affected Aircraft
Airbus Helicopters Deutschland GmbH Model MBB-BK 117 A-1, MBB-BK 117 A-3, MBB-BK 117 A-4, MBB-BK 117 B-1, MBB-BK 117 B-2, and MBB-BK 117 C-1 helicopters, certificated in any category, with an `affected `angle 0' parts' or `affected `angle 1' parts' installed, as identified in European Aviation Safety Agency (now European Union Aviation Safety Agency) (EASA) AD 2018-0061, dated March 20, 2018 (EASA AD 2018-0061).
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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