AD 2002-10-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | MD | Various | Airworthiness Directives; MD Helicopters Inc. Model MD-900 Helicopters |
Unsafe Condition
Cracks starting at the drive plate attachment holes in the main rotor upper hub assembly drive plate attachment flange have been reported, which could lead to failure of the hub assembly, loss of drive to the main rotor, 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 outer surface of the flange at specified intervals. Remove the drive plate and visually inspect the flange for cracks at specified intervals. Replace any unairworthy hub assembly if a crack is found.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight if a crack is found.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
MD Helicopters Inc. Model MD-900 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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