AD 86-20-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bell Helicopter Textron, Inc. | 214B | Airworthiness Directives; BELL HELICOPTER TEXTRON, INC. Model 214ST, 214B and 214B-1 Helicopters |
| aircraft | Bell Helicopter Textron, Inc. | 214B-1 | Airworthiness Directives; BELL HELICOPTER TEXTRON, INC. Model 214ST, 214B and 214B-1 Helicopters |
| aircraft | Bell Helicopter Textron, Inc. | 214ST | Airworthiness Directives; BELL HELICOPTER TEXTRON, INC. Model 214ST, 214B and 214B-1 Helicopters |
Unsafe Condition
Failure of the main rotor drag brace assembly, part number 214-010-113-001.
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Required Actions
Replace the main rotor drag brace assembly with part number 214-010-113-105 for Model 214ST helicopters and part number 214-010-113-107 for Models 214B and 214B-1. Compliance may be achieved through an approved alternate method providing equivalent safety.
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Compliance Time
Within the next 50 hours' time in service or within 30 days after the effective date of this AD, whichever comes first.
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Affected Aircraft
Bell Helicopter Textron, Inc. Model 214ST helicopters, serial numbers 28101 through 28159, and Models 214B and 214B-1, serial numbers 28001 through 28070, equipped with main rotor drag brace assembly part number 214-010-113-001.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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