AD 80-17-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bell Helicopter Textron Canada Limited | 206A | Airworthiness Directives; BELL Models 206A, 206B, 206A-1, 206B-1, and 206L Helicopters |
| aircraft | Bell Helicopter Textron Canada Limited | 206A-1 (OH-58A) | Airworthiness Directives; BELL Models 206A, 206B, 206A-1, 206B-1, and 206L Helicopters |
| aircraft | Bell Helicopter Textron Canada Limited | 206B | Airworthiness Directives; BELL Models 206A, 206B, 206A-1, 206B-1, and 206L Helicopters |
| aircraft | Bell Helicopter Textron Canada Limited | 206B-1 | Airworthiness Directives; BELL Models 206A, 206B, 206A-1, 206B-1, and 206L Helicopters |
| aircraft | Bell Helicopter Textron Canada Limited | 206L | Airworthiness Directives; BELL Models 206A, 206B, 206A-1, 206B-1, and 206L Helicopters |
Unsafe Condition
Failure of tail rotor blades, P/N 206-010-750-005 and -007, due to fatigue cracks in the blade skin surfaces between Blade Station 7.1 and 11.1.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Visually check for chordwise cracks in the tail rotor blade skin surfaces between Blade Station 7.1 and 11.1 using a three-power or higher magnifying glass before the first flight of each day after the effective date. Replace blades with cracks before further flight. Blades with 450+ hours' time in service on the effective date must be removed within next 50 hours. Blades under 450 hours must be removed before attaining 500 hours' time in service.
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Compliance Time
Before the first flight of each day after the effective date of this AD
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Affected Aircraft
Bell Helicopter Textron Canada Limited Models 206A, 206B, 206A-1, 206B-1, and 206L helicopters equipped with tail rotor blades P/N 206-010-750-005 and -007.
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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