AD 57-07-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Scotts-Bell 47 Inc | 47H-1 | Airworthiness Directives; Bell Model 47H1 Helicopters |
Unsafe Condition
Looseness of synchronized elevator assemblies and cracking of elevator shafts due to excessive play in rivets, shoulder fittings, or tapered bushings.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Conduct daily inspections for elevator assembly looseness until rework is completed. Remove and rework or replace loose or cracked elevator assemblies, including inspecting elevator shafts for cracks or hole elongation, replacing cracked components, and following Bell Service Bulletin No. 117 for reassembly with new plugs, bolts, and tapered bushings.
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Compliance Time
Prior to the next flight for rework, and daily inspections until rework is accomplished.
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Affected Aircraft
Scotts-Bell 47 Inc Model 47H1 Helicopters with serial numbers 1347 Through 1349, 1351 Through 1360, and 1362 Through 1371.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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