AD 2003-14-51
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | MD | Various | Airworthiness Directives; MD Helicopters, Inc., Model MD900 Helicopters |
Unsafe Condition
Failure of a main rotor blade retention bolt (part number 900R3100001-103), leading to loss of a main rotor blade and subsequent loss of control of the helicopter.
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Required Actions
Before further flight, remove, inspect, and reinstall each bolt. Replace any unairworthy bolt with an airworthy one. Perform visual checks and cam lever force inspections on bolts with 400 or more hours TIS. Disassemble, inspect, and reinstall each airworthy bolt within 30 days for those with 400 or more hours TIS, and before accumulating 400 hours TIS for those with less than 400 hours TIS. Replace any unairworthy bolt with an airworthy one before further flight.
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Compliance Time
Before further flight
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Affected Aircraft
MD Helicopters, Inc., Model MD900 helicopters, all serial numbers, equipped with main rotor blade retention bolts (part number 900R3100001-103).
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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