AD Amdt-39-10712
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Robinson | Various | Airworthiness Directives; Robinson Helicopter Company (RHC) Model R44 Helicopters |
Unsafe Condition
A fatigue crack can originate at the trim tab alignment rivet holes in the main rotor blade skin and propagate, leading to failure of the main rotor blade.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Conduct a dye penetrant inspection of each main rotor blade skin around both inboard trim tab alignment rivet holes within 5 hours time in service (TIS). Thereafter, perform a repetitive visual inspection before the first flight of each day or every 5 hours TIS, whichever comes first.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 5 hours time in service (TIS)
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Affected Aircraft
Robinson Helicopter Company Model R44 helicopters
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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