AD 2019-08-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron | Canada Limited | Airworthiness Directives; Bell Helicopter Textron Canada Limited Helicopters |
| aircraft | Bell | Helicopter Textron Canada Limited | Airworthiness Directives; Bell Helicopter Textron Canada Limited Helicopters |
Unsafe Condition
A blocked oil line restrictor in the freewheel lubrication system could cause failure of the freewheel assembly, failure of the main rotor mast, and subsequent loss of control of the helicopter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the oil line restrictor for blockage. If there is any blockage in the restrictor, before further flight, inspect the freewheel assembly for condition and wear. For Model 206A, 206B, 206L, 206L-1, 206L-3, and 206L-4 helicopters, replace the reducer with a filter, part number 50-075-1.
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Compliance Time
Within 100 hours time-in-service
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Affected Aircraft
Bell Model 206A, 206B, 206L, 206L-1, 206L-3, 206L-4, and 407 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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