AD 85-02-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Scotts-Bell 47 Inc | 47G-2A | Airworthiness Directives; BELL HELICOPTER TEXTRON, INC. Model 47G-2A, G-2A-1, G-3, G-3B, G-3B-1, G-3B-2, G-3B-2A, G-4, G-4A, G-5, G-5A, J, J-2, J-2A, and K Helicopters |
| aircraft | Scotts-Bell 47 Inc | 47G-2A-1 | Airworthiness Directives; BELL HELICOPTER TEXTRON, INC. Model 47G-2A, G-2A-1, G-3, G-3B, G-3B-1, G-3B-2, G-3B-2A, G-4, G-4A, G-5, G-5A, J, J-2, J-2A, and K Helicopters |
| aircraft | Scotts-Bell 47 Inc | 47G-3 | Airworthiness Directives; BELL HELICOPTER TEXTRON, INC. Model 47G-2A, G-2A-1, G-3, G-3B, G-3B-1, G-3B-2, G-3B-2A, G-4, G-4A, G-5, G-5A, J, J-2, J-2A, and K Helicopters |
| aircraft | Scotts-Bell 47 Inc | 47G-3B | Airworthiness Directives; BELL HELICOPTER TEXTRON, INC. Model 47G-2A, G-2A-1, G-3, G-3B, G-3B-1, G-3B-2, G-3B-2A, G-4, G-4A, G-5, G-5A, J, J-2, J-2A, and K Helicopters |
| aircraft | Scotts-Bell 47 Inc | 47G-3B-1 | Airworthiness Directives; BELL HELICOPTER TEXTRON, INC. Model 47G-2A, G-2A-1, G-3, G-3B, G-3B-1, G-3B-2, G-3B-2A, G-4, G-4A, G-5, G-5A, J, J-2, J-2A, and K Helicopters |
| aircraft | Scotts-Bell 47 Inc | 47G-3B-2 | Airworthiness Directives; BELL HELICOPTER TEXTRON, INC. Model 47G-2A, G-2A-1, G-3, G-3B, G-3B-1, G-3B-2, G-3B-2A, G-4, G-4A, G-5, G-5A, J, J-2, J-2A, and K Helicopters |
| aircraft | Scotts-Bell 47 Inc | 47G-3B-2A | Airworthiness Directives; BELL HELICOPTER TEXTRON, INC. Model 47G-2A, G-2A-1, G-3, G-3B, G-3B-1, G-3B-2, G-3B-2A, G-4, G-4A, G-5, G-5A, J, J-2, J-2A, and K Helicopters |
| aircraft | Scotts-Bell 47 Inc | 47G-4 | Airworthiness Directives; BELL HELICOPTER TEXTRON, INC. Model 47G-2A, G-2A-1, G-3, G-3B, G-3B-1, G-3B-2, G-3B-2A, G-4, G-4A, G-5, G-5A, J, J-2, J-2A, and K Helicopters |
| aircraft | Scotts-Bell 47 Inc | 47G-4A | Airworthiness Directives; BELL HELICOPTER TEXTRON, INC. Model 47G-2A, G-2A-1, G-3, G-3B, G-3B-1, G-3B-2, G-3B-2A, G-4, G-4A, G-5, G-5A, J, J-2, J-2A, and K Helicopters |
| aircraft | Scotts-Bell 47 Inc | 47G-5 | Airworthiness Directives; BELL HELICOPTER TEXTRON, INC. Model 47G-2A, G-2A-1, G-3, G-3B, G-3B-1, G-3B-2, G-3B-2A, G-4, G-4A, G-5, G-5A, J, J-2, J-2A, and K Helicopters |
Unsafe Condition
Incorrect AN/NAS standard bolts installed between hydraulic servo and swashplate control plate, Part Number 47-150-184-7, not listed in the applicable illustrated parts breakdown manual may cause critical flight control failure in the main rotor system.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect and remove incorrect AN/NAS standard bolts between hydraulic servo and swashplate control plate, install Bell Helicopter Textron standard bolts, inspect flight control system for safety and security, and obtain approval for equivalent methods from the FAA.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 100 hours time in service after the effective date of this AD
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Affected Aircraft
Bell Helicopter Textron, Inc. Models 47G-2A, G-2A-1, G-3, G-3B, G-3B-1, G-3B-2, G-3B-2A, G-4, G-4A, G-5, G-5A, J, J-2, J-2A, and K helicopters with 37-foot diameter main rotor systems and hydraulic boost in longitudinal and lateral cyclic flight control systems.
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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