AD 72-21-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Brantly International, Inc. | B-2 | Airworthiness Directives; BRANTLY Models B-2, B-2A and B-2B Helicopters |
| aircraft | Brantly International, Inc. | B-2A | Airworthiness Directives; BRANTLY Models B-2, B-2A and B-2B Helicopters |
| aircraft | Brantly International, Inc. | B-2B | Airworthiness Directives; BRANTLY Models B-2, B-2A and B-2B Helicopters |
Unsafe Condition
Fatigue failure of the pylon outboard bearing shaft, Part Number 280-5 or 280-6.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace the pylon outboard bearing shaft parts (three per helicopter) with serviceable parts having Part Number 280-6. Torque the replacement shafts to 2500 ± 100 inch-pounds and secure with an AN435-4-9 rivet or equivalent.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 10 hours time in service after the effective date of this AD, or upon the accumulation of 500 hours total time in service, whichever occurs later.
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Affected Aircraft
Brantly International, Inc. Models B-2, B-2A, and B-2B 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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