AD 86-17-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bell Helicopter Textron, Inc. | 205A | Airworthiness Directives; BELL HELICOPTER TEXTRON, INC. Helicopter Models 205 and 205A-1 Helicopters |
| aircraft | Bell Helicopter Textron, Inc. | 205A-1 | Airworthiness Directives; BELL HELICOPTER TEXTRON, INC. Helicopter Models 205 and 205A-1 Helicopters |
Unsafe Condition
Failure of the tail rotor control due to cracks in the T/R trunnion housing or axial play in the T/R trunnion, or presence of excess balance washers.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 25 hours' time in service after receipt, visually inspect the T/R hub assembly per Bell ASB 205-86-24. If cracks, axial play, or excess washers exist, comply with Part II of the ASB before further flight. Repeat inspection every 25 hours until part (b) is done. Remove and inspect the T/R hub and blade assembly within 150 hours' time in service or 60 days after AD issue, whichever comes first, replacing housings with end web thickness ≤0.059 inch.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 25 hours' time in service after receipt for initial inspection; within 150 hours' time in service or 60 days after AD issue date for part (b), whichever occurs first.
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Affected Aircraft
Bell Helicopter Textron, Inc. Models 205 and 205A-1 helicopters with retrofit kit P/N 212-704-129-101 installed.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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