AD 2009-22-11
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron | Canada Model 407 and 427 | Airworthiness Directives; Bell Helicopter Textron Canada Model 407 and 427 Helicopters |
| aircraft | Bell | Helicopter Textron Canada Model 407 and 427 | Airworthiness Directives; Bell Helicopter Textron Canada Model 407 and 427 Helicopters |
| aircraft | Aviat | Various | Airworthiness Directives; Bell Helicopter Textron Canada Model 407 and 427 Helicopters |
Unsafe Condition
The swashplate link assembly bearing had moved in the lever race, making contact with the swashplate support, due to incorrect staking during manufacture. This could result in bearing failure, swashplate link assembly failure, 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 all anti-drive link assemblies, part number 406-010-432-101 with a serial number prefix of 'TI' or 'TIFS', to ensure the bearing, part number 406-310-403-101, is correctly and securely staked. Replace the bearing or the anti-drive link assembly if not correctly staked.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 10 hours time-in-service (TIS)
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Bell Helicopter Textron Canada Model 407 helicopters, serial numbers 53000 through 53887, 53890 through 53916, 53918, 53920, 53921, 53923 through 53926, and 53928; and Model 427 helicopters, serial numbers 56001 through 56074, with an anti-drive link assembly, part number 406-010-432-101, that has a serial number prefix of 'TI' or 'TIFS'.
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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