AD 98-11-14
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bell Helicopter Textron, Inc. | 205A-1 | Airworthiness Directives; Bell Helicopter Textron, Inc. Model 205A-1 and 205B Helicopters |
| aircraft | Bell Helicopter Textron, Inc. | 205B | Airworthiness Directives; Bell Helicopter Textron, Inc. Model 205A-1 and 205B Helicopters |
Unsafe Condition
Failure of the tail rotor yoke assembly due to unforeseen static and dynamic loading, leading to loss of the tail rotor and subsequent loss of control of the helicopter.
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Required Actions
Inspect the trunnion assembly or tail rotor flapping stop, install an airworthy trunnion assembly or flapping stop if necessary, and replace the tail rotor yoke. Replace the yoke within 180 calendar days if no excessive bending load event occurred, and thereafter inspect at intervals not exceeding 25 hours time-in-service or after incidents imposing excessive bending loads.
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Compliance Time
Before further flight
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Affected Aircraft
Bell Helicopter Textron, Inc. Model 205A-1 and 205B helicopters with tail rotor yoke assembly part numbers 212-011-702-all dash numbers or 212-010-704-all dash numbers.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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