AD 2024-04-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Robinson | Helicopter Company | Airworthiness Directives; Robinson Helicopter Company Helicopters |
Unsafe Condition
TRB tip caps coming loose due to corrosion at the bond on Robinson Helicopter Company Model R44 helicopters, and TRBs that have corroded to an unserviceable condition, including severe leading edge pitting and degradation of the bond at the tip cap.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Visually checking and inspecting the tips caps of TRB part number (P/N) A029-2 with TRB serial numbers (S/N) up to 11279 inclusive (P/N A029-2 REV A through U inclusive), TRB P/N C029-3 with TRB S/N up to 14329 inclusive (P/N C029-3 REV A through Q inclusive), and TRB P/N F029-1 with TRB S/N up to 3099 inclusive (P/N F029-1 REV A through F inclusive) for evidence of corrosion, removing corrosion, and eventual removal of those TRBs from service.
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Compliance Time
Within 10 months
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Affected Aircraft
Robinson Helicopter Company Model R22, R22 Alpha, R22 Beta, R22 Mariner, R44, R44 II, and R66 helicopters with certain part-numbered and serial-numbered TRBs installed.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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