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Tue, Nov 27, 2012

AD: Eurocopter France Helicopters

AD NUMBER: 2012-23-03

PRODUCT: All Eurocopter France (Eurocopter) Model SA.315B Alouette III, SE.3160 Alouette III, SA.316B Alouette III, SA.316C Alouette III, SA.319B Alouette III, SA 3180-ALOUETTE ASTAZOU, SA 318B-ALOUETTE ASTAZOU, and SA 318 C-ALOUETTE ASTAZOU helicopters.
SUBJECT: Airworthiness Directive 2012-23-03
ACTION: Final Rule

SUMMARY: This AD requires inspecting the cage of the free-wheel assembly for the correct alignment of the roller drive pocket recesses and replacing the free-wheel cage with an airworthy free-wheel cage if a defect exists. This AD was prompted by incorrect positioning of the roller drive pocket recesses on the tail rotor drive shaft freewheel cage, which caused a pilot to experience a heavy jerk in the yaw control during in-flight autorotation training.

The requirements of this AD are intended to prevent a loss of tail rotor drive and subsequent loss of control of the helicopter.

DATES: This AD is effective December 31, 2012.

FMI: AD

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