AD 58-09-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Scotts-Bell 47 Inc | 47J | Airworthiness Directives; Bell Model 47J Helicopters |
Unsafe Condition
Main rotor blades may have cracks in the stainless steel leading edge or damage from hitting an object or contacting the universal joint cover, leading to blade failure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove and inspect main rotor blades that have contacted an object or caused over 1/4-inch indentation in the universal joint cover. Visually inspect -13 blades for cracks and return cracked blades to manufacturer. Remove all -9 blades and rework them to -13 configuration.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
prior to next flight
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Affected Aircraft
Scotts-Bell 47 Inc Model 47J Helicopters with 47-110-401-13 or 47-110-401-9 main rotor blades.
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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