AD 2006-26-51
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Eurocopter | Deutschland GmbH Model MBB-BK 117 C-2 | Airworthiness Directives; Eurocopter Deutschland GmbH Model MBB-BK 117 C-2 Helicopters |
Unsafe Condition
The threaded portion of the tail rotor control lever containing a dynamic weight broke off during flight, leading to severe vibrations and potential loss of control.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Mark the position of the tail rotor control lever dynamic weights, remove the split pins and weights, and visually inspect the tail rotor control lever. Replace the tail rotor control lever if necessary. Repeat the visual inspection within 10 hours time-in-service (TIS) and every 25 hours TIS thereafter. Reassemble the tail rotor control lever following the appropriate maintenance instruction.
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Compliance Time
Before further flight
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Affected Aircraft
Eurocopter Deutschland GmbH Model MBB-BK 117 C-2 helicopters
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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