AD 2008-15-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron | Various | Airworthiness Directives; Bell Helicopter Textron Canada (BHTC) Model 430 Helicopters |
| aircraft | Bell | Various | Airworthiness Directives; Bell Helicopter Textron Canada (BHTC) Model 430 Helicopters |
| aircraft | Aviat | Various | Airworthiness Directives; Bell Helicopter Textron Canada (BHTC) Model 430 Helicopters |
Unsafe Condition
The cumulative effect of individual part tolerances may result in the tail rotor yoke striking another part (parts interference), and the misalignment of the tail rotor counterweight bellcrank may result in higher tail rotor pedal forces and increased pilot workload after failure of the No. 1 hydraulic system.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Adjust the rigging of the tail rotor pitch change mechanism according to Bell Helicopter Textron Alert Service Bulletin 430-07-39. Replace the tail rotor yoke if a gap exists between the yoke and flapping stop at full pedal positions. Measure and adjust the gap between the tail rotor yoke and nut (P/N 222-012-731-001) if no gap exists between the yoke and flapping stop, and adjust the tail rotor pedal forces as specified.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 150 hours time-in-service or at the next annual inspection, whichever occurs first.
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Affected Aircraft
Bell Helicopter Textron Canada Model 430 helicopters, serial numbers 49001 through 49122, certificated in any category.
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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