AD 73-19-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bell Helicopter Textron Canada Limited | 206A | Airworthiness Directives; Bell Model 206A, 206B, 206A-1 and 206B- 1 Helicopters |
| aircraft | Bell Helicopter Textron Canada Limited | 206A-1 (OH-58A) | Airworthiness Directives; Bell Model 206A, 206B, 206A-1 and 206B- 1 Helicopters |
| aircraft | Bell Helicopter Textron Canada Limited | 206B | Airworthiness Directives; Bell Model 206A, 206B, 206A-1 and 206B- 1 Helicopters |
| aircraft | Bell Helicopter Textron Canada Limited | 206B-1 | Airworthiness Directives; Bell Model 206A, 206B, 206A-1 and 206B- 1 Helicopters |
Unsafe Condition
Fatigue cracks in main rotor retention strap fittings P/N 206-010-155-11 and -15, and main rotor retention strap pin P/N 206-010-123-3.
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Required Actions
Remove and replace retention strap fittings and pins with 1100+ hours total time in service within next 100 hours time in service. Remove and replace fittings and pins with <1100 hours before accumulating 1200 hours total time. Install replacements per maintenance manuals and corrosion protection per Bell Technical Bulletin 206-(04-1)-73-1 or equivalent.
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Compliance Time
Within the next 100 hours time in service (for items with ≥1100 hours) or prior to accumulating 1200 hours total time in service (for items with <1100 hours).
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Affected Aircraft
Bell Model 206A, 206B, 206A-1 (OH-58A), and 206B-1 helicopters certificated in all categories.
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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