AD 47-41-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Scotts-Bell 47 Inc | 47B | Airworthiness Directives; Bell Model 47B Series Airplanes |
| aircraft | Scotts-Bell 47 Inc | 47B3 | Airworthiness Directives; Bell Model 47B Series Airplanes |
Unsafe Condition
Fiber bearing seals in the gimbal ring may not securely lock the bearings, leading to bearing failure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace fiber bearing seals with steel bearing seals, part number 27-120-127-1, following Bell Service Bulletin 47C30 dated July 10, 1947.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
next 100-hour inspection
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Scotts-Bell 47 Inc Model 47B and 47B3 aircraft through serial number 78.
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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