AD 92-09-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bell Helicopter Textron Canada Limited | 206A | Airworthiness Directives; BELL HELICOPTER TEXTRON, INC. (BHTI) Model 206A and 206B Helicopters |
| aircraft | Bell Helicopter Textron Canada Limited | 206A-1 (OH-58A) | Airworthiness Directives; BELL HELICOPTER TEXTRON, INC. (BHTI) Model 206A and 206B Helicopters |
| aircraft | Bell Helicopter Textron Canada Limited | 206B | Airworthiness Directives; BELL HELICOPTER TEXTRON, INC. (BHTI) Model 206A and 206B Helicopters |
| aircraft | Bell Helicopter Textron Canada Limited | 206B-1 | Airworthiness Directives; BELL HELICOPTER TEXTRON, INC. (BHTI) Model 206A and 206B Helicopters |
Unsafe Condition
Failure of the vertical fin supports, which could result in loss of the vertical fin and loss of control of the helicopter.
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Required Actions
Inspect for cracks and modify the vertical fin supports in accordance with Part I of Bell Helicopter Alert Service Bulletin No. 206-91-60. Inspect for gaps between the tailboom and fin mounted inserts and comply with Part II of the same service bulletin if gaps are found. The inspections and modifications must be done per the referenced service bulletin.
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Compliance Time
within 30 days or 100 hours' time in service, whichever comes first, after the effective date of this AD
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Affected Aircraft
Bell Helicopter Textron, Inc. Model 206A and 206B helicopters, serial numbers 4 through 1163, equipped with a vertical fin assembly having an external doubler part number 206-020-113-109 on the lefthand side adjacent to the supports.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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