AD 56-01-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Scotts-Bell 47 Inc | 47G | Airworthiness Directives; Bell Model 47G and 47G2 Helicopters |
| aircraft | Scotts-Bell 47 Inc | 47G-2 | Airworthiness Directives; Bell Model 47G and 47G2 Helicopters |
Unsafe Condition
Ventral fin support angle braces, P/N 47-267-085-5 and -6, interfere with the tail boom longeron, P/N 47-267-057-111, causing wear and damage exceeding 0.008 inch based on the undamaged tube diameter.
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Required Actions
Inspect the tail boom longeron on both sides for wear and damage. Repair any damage exceeding 0.008 inch. Provide 1/32 inch clearance between the support angle braces and the longeron. Weld a 1/16-inch steel plate (3/4-inch x 3 inches) to the back of the 47-267-057-167 angle brace if a split tube sleeve repair was done.
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Compliance Time
as soon as possible, but not later than January 31, 1956
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Affected Aircraft
Scotts-Bell 47 Inc Model 47G, Serial Numbers 666 Through 1411 and Model 47G2, Serial Numbers 1342 Through 1412
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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