AD 65-28-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Brantly International, Inc. | B-2 | Airworthiness Directives; BRANTLY Model B-2 Series Helicopters |
| aircraft | Brantly International, Inc. | B-2A | Airworthiness Directives; BRANTLY Model B-2 Series Helicopters |
| aircraft | Brantly International, Inc. | B-2B | Airworthiness Directives; BRANTLY Model B-2 Series Helicopters |
Unsafe Condition
Failure of the tail rotor blade grip at the outboard thrust bearing shoulder due to tool marks deeper than 0.010 inch or relief radius less than 0.020 inch.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect tail rotor blades assembly (P/N B2-111-11) for tool marks deeper than 0.010 inch and relief radius less than 0.020 inch using sealing wax impressions and magnification. Remove blades with non-compliant dimensions from service before further flight; reinstall compliant blades per maintenance manual.
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Compliance Time
Before the accumulation of 125 hours' time in service (for blades with <100 hours at AD effective date) or within the next 25 hours' time in service (for blades with ≥100 hours at AD effective date).
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Affected Aircraft
Brantly International, Inc. Model B-2 Series Helicopters, serial numbers 454 and below, equipped with tail rotor blades assembly P/N B2-111-11.
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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