AD 2010-21-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; Eurocopter France (Eurocopter) Model AS350B, BA, B1, B2, B3, D, AS355E, F, F1, F2, and N Helicopters |
Unsafe Condition
Repetitive loads on the non-modified center cross-member at station X 2325, at the attachment point of the yaw channel ball-type control sheath stop, may cause it to crack. A crack can reduce yaw control travel.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect for the presence of the center cross-member and doublers under the cabin floor. Determine whether there is a crack in the center cross-member. Install the structural doublers if missing.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 10 hours time-in-service (TIS) or 1 month, whichever occurs first, to inspect. If doublers are missing, install them within 55 hours TIS.
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Affected Aircraft
Eurocopter France (Eurocopter) Model AS350B, BA, B1, B2, B3, D, AS355E, F, F1, F2, and N helicopters.
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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