AD 2010-18-52
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | MD | Various | Airworthiness Directives; MD Helicopters, Inc. Model MD900 Helicopters |
Unsafe Condition
Crack in the main rotor hub near the flex beam bolt hole locations, which could lead to hub failure and subsequent loss of control of the helicopter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Visually inspect the main rotor hub for a crack, paying particular attention to the area of the 5 flex beam bolt hole locations. If a crack is found, replace the unairworthy hub with an airworthy hub before further flight. Report the finding to the Los Angeles Aircraft Certification Office within 10 days of finding the crack.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 4 hours time-in-service
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Affected Aircraft
MD Helicopters, Inc. Model MD900 helicopters with part numbers 900R2101008-103, -105, and -107.
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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