AD 56-15-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Scotts-Bell 47 Inc | 47H-1 | Airworthiness Directives; Bell Model 47H1 Helicopters |
Unsafe Condition
Tail boom skin cracking in the area of the aft ballast and inadequate clearance with the new aft ballast provision installation.
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Required Actions
Install Bell Kit No. 47-2406-1B for revised aft ballast provision and Bell Kit No. 47-2406-1A for Antitorque Control Pulley Brackets. Also install new tail rotor control cable assembly P/N NAS 302 R-66-5537.
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Compliance Time
as soon as possible, but not later than August 15, 1956
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Affected Aircraft
Scotts-Bell 47 Inc Model 47H-1 Helicopters, Serial Numbers 1347 Through 1356
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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