AD 61-04-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Brantly International, Inc. | B-2 | Airworthiness Directives; BRANTLY Models B-2 Helicopters |
| aircraft | Brantly International, Inc. | B-2A | Airworthiness Directives; BRANTLY Models B-2 Helicopters |
| aircraft | Brantly International, Inc. | B-2B | Airworthiness Directives; BRANTLY Models B-2 Helicopters |
Unsafe Condition
Centrifugal clutch failure to release at engine shutdown can shear AN 4-10A bolts transmitting torque between the B2-8-14 clutch disc assembly, fabric coupling, and free-wheeling clutch housing lugs.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect all 6 AN 4-10A bolts securing the fabric coupling within 10 hours of flight time post-effective date. Replace any sheared bolts before further operation. Install a placard near the fuel mixture control to remind operators to manually check clutch freedom before each engine start.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 10 hours of flight time after the effective date of this directive
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Brantly International, Inc. Models B-2, B-2A, B-2B helicopters; all serial numbers
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
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.