AD 56-15-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Scotts-Bell 47 Inc | 47H-1 | Airworthiness Directives; Bell Model 47H1 Helicopters |
Unsafe Condition
Failure of a control cable of the synchronized elevator control system can result in loss of control of the helicopter.
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Required Actions
Installation of the fail safe synchronized elevator centering spring, Bell Kit No. 47-2573-1, is mandatory to provide a self-centering device for the synchronized elevator.
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Compliance Time
as soon as possible but not later than August 15, 1956
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Affected Aircraft
Bell Model 47H1 Helicopters, Serial Numbers 1347 Through 1349 and 1351 Through 1371
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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