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Thu, Aug 07, 2014

AD: MD Helicopters, Inc., Helicopters

AD NUMBER: 2014-16-01

PRODUCT: MD Helicopters, Inc. (MDHI), Model MD900 helicopters.
ACTION: Final rule; request for comments.

SUMMARY:  This AD requires an eddy current inspection of the main rotor upper hub assembly (upper hub) for a crack and replacing the upper hub with an airworthy upper hub before further flight if there is a crack.

This AD is prompted by a report of cracks on an upper hub at the blade attach holes. The actions specified by this AD are intended to detect a crack in the upper hub to prevent failure of the upper hub and subsequent loss of control of the helicopter.

DATES: This AD becomes effective August 20, 2014. Comments must be received by October 6, 2014.

FMI: AD

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