AD 73-19-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Scotts-Bell 47 Inc | 47B | Airworthiness Directives; Bell Model 47B, 47B-3, 47D, 47D-1, 47E, 47G, 47G-2 and 47H-1 Helicopters |
| aircraft | Scotts-Bell 47 Inc | 47B3 | Airworthiness Directives; Bell Model 47B, 47B-3, 47D, 47D-1, 47E, 47G, 47G-2 and 47H-1 Helicopters |
| aircraft | Scotts-Bell 47 Inc | 47D | Airworthiness Directives; Bell Model 47B, 47B-3, 47D, 47D-1, 47E, 47G, 47G-2 and 47H-1 Helicopters |
| aircraft | Scotts-Bell 47 Inc | 47D1 | Airworthiness Directives; Bell Model 47B, 47B-3, 47D, 47D-1, 47E, 47G, 47G-2 and 47H-1 Helicopters |
| aircraft | Scotts-Bell 47 Inc | 47E | Airworthiness Directives; Bell Model 47B, 47B-3, 47D, 47D-1, 47E, 47G, 47G-2 and 47H-1 Helicopters |
| aircraft | Scotts-Bell 47 Inc | 47G | Airworthiness Directives; Bell Model 47B, 47B-3, 47D, 47D-1, 47E, 47G, 47G-2 and 47H-1 Helicopters |
| aircraft | Scotts-Bell 47 Inc | 47G-2 | Airworthiness Directives; Bell Model 47B, 47B-3, 47D, 47D-1, 47E, 47G, 47G-2 and 47H-1 Helicopters |
| aircraft | Scotts-Bell 47 Inc | 47H-1 | Airworthiness Directives; Bell Model 47B, 47B-3, 47D, 47D-1, 47E, 47G, 47G-2 and 47H-1 Helicopters |
Unsafe Condition
Fatigue failure of the tail rotor yoke, P/N 47-641-057-9, with serial numbers N29-1246 through N29-1266, N29-1298 through N29-1452, N29-10453 through N29-10488, and N29-10501 through N29-10525.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace tail rotor yokes with 390 or more hours total time in service on the effective date within 10 hours time in service. Replace those with less than 390 hours prior to accumulating 400 hours total time in service.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within 10 hours time in service
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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