AD 2008-17-51
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | MD | Various | Airworthiness Directives; MD Helicopters, Inc. Model MD900 Helicopters |
Unsafe Condition
In-flight failure of the control cable and loss of yaw control resulting in emergency landings and subsequent damage to the helicopter.
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Required Actions
Fluorescent magnetic particle inspect the aft threads of the forward directional control cable for a crack and replace the control cable with an airworthy part if a crack is found. If no crack is found, demagnetize the cable threads until a gauss level of +/-3 is reached. Visually inspect the aft cable attach bracket for a crack, interference with movement of the control cable, or deformation of the bracket. Replace the bracket with an airworthy part if any of these conditions exist. Modify the control cable conduit and the rotating cone control rod, and identify the rotating cone control rod with part number 900C2010582-105.
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Compliance Time
Before further flight
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Affected Aircraft
MD Helicopters, Inc. Model MD900 helicopters.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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