AD Amdt-39-11101
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron | Various | Airworthiness Directives; Bell Helicopter Textron, Inc.- manufactured Model HH-1K, SW204, SW204HP, SW205, SW205A-1, TH-1F, TH- 1L, UH-1A, UH-1B, UH-1E, UH-1F, UH-1H, UH-1L, and UH-1P Helicopters |
| aircraft | Bell | Helicopter Textron | Airworthiness Directives; Bell Helicopter Textron, Inc.- manufactured Model HH-1K, SW204, SW204HP, SW205, SW205A-1, TH-1F, TH- 1L, UH-1A, UH-1B, UH-1E, UH-1F, UH-1H, UH-1L, and UH-1P Helicopters |
Unsafe Condition
In-flight failures of tail rotor yoke assemblies due to external bending loads, which could result in yoke failure, loss of the tail rotor, 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 tail rotor yoke assembly historical records to determine if the yoke has been involved in incidents inducing bending loads. Replace the yoke assembly with one that has been x-ray diffraction inspected or has zero hours time-in-service. Install and inspect an airworthy flapping stop or trunnion assembly to detect excessive bending loads. Revise the applicable Rotorcraft Flight Manual.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Bell Helicopter Textron, Inc.-manufactured Model HH-1K, SW204, SW204HP, SW205, SW205A-1, TH-1F, TH-1L, UH-1A, UH-1B, UH-1E, UH-1F, UH-1H, UH-1L, and UH-1P 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
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.