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AD: Bell Helicopter Textron Canada Helicopters

AD NUMBER: 2015-05-04

PRODUCT: Bell Helicopter Textron Canada (BHTC) Model 407 helicopters.

ACTION: Final Rule

SUMMARY: This AD requires inspecting the aft fuselage upper skin (upper skin) for a crack and the upper left longeron assembly (longeron assembly) for a crack, corrosion, or defect.

This AD requires replacing or repairing a part or section, depending on the inspection's outcome. This AD was prompted by reports of cracks in the upper left-hand longeron.

This AD's actions are intended to prevent failure of the longeron assembly or the upper skin, which could lead to a structural failure and loss of helicopter control.

DATES: This AD is effective April 20, 2015.

FMI: AD

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