AD 2009-25-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; Eurocopter France Model EC120B Helicopters |
Unsafe Condition
Unreliability of the latching push buttons on the Emergency Floatation Gear Lighting and Ancillary Control Unit (LACU), including the `FLOAT ARM' pushbutton, which fails to latch in the depressed position, and improper illumination of the lights.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the `FLOAT ARM' pushbutton before each flight over water to ensure it latches in the depressed position. If the pushbutton fails to latch, replace it with an airworthy unit before further flight over water. Revise the Rotorcraft Flight Manual Supplement (RFMS) to include the limitations and functional check procedures.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight over water if the pushbutton fails the functional check.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Eurocopter France Model EC120B helicopters with an Emergency Floatation Gear Lighting and Ancillary Control Unit (LACU), part number 040101AB, installed.
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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