AD 60-23-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing Defense & Space Group | 42A | Airworthiness Directives; VERTOL Models 42 and 44 Series Helicopters |
| aircraft | Boeing Defense & Space Group | 42B | Airworthiness Directives; VERTOL Models 42 and 44 Series Helicopters |
| aircraft | Boeing Defense & Space Group | 44A | Airworthiness Directives; VERTOL Models 42 and 44 Series Helicopters |
| aircraft | Boeing Defense & Space Group | 44B | Airworthiness Directives; VERTOL Models 42 and 44 Series Helicopters |
Unsafe Condition
Fatigue failure of the lower directional bellcrank assembly, part number 22C1611-13.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Retire all Vertol parts P/N 22C1611-13 upon accumulation of 2,500 hours of time in service.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Compliance required as indicated.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
VERTOL Models 42A, 42B, 44A, 44B helicopters with part number 22C1611-13.
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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