AD 2012-15-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Eurocopter | France | Airworthiness Directives; Eurocopter France Helicopters |
Unsafe Condition
Intermittent uncommanded roll oscillations during coupled instrument landing system and localizer approaches with the autopilot coupled, which could result in subsequent loss of control of the helicopter.
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Required Actions
Before further flight, revise the Operating Limitations section of the Eurocopter EC 155B1 Flight Manual by inserting a copy of this AD or making pen and ink changes to require two pilots for IFR operations.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
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Affected Aircraft
Eurocopter France Model EC155B1 helicopters with automated flight control system part number 416-00297-161 and software level P/N 704A47-1332-79 installed.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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