Critical Rotor Assembly Nut for Helicopter Tightened with a Hand Torque Multiplier A helicopter manufacturer had a critical torque application during the routine maintenance process of their aircraft. The rotor of the helicopter requires servicing after every 20 hours of flight. Some of these aircraft are serviced in very remote locations, where air or power is not readily available or reliable. Ensuring proper torque control is achieved for the rotor assembly nut is a critical element for maintaining the continuous safe operation of the helicopter. The director of maintenance contacted Mountz Inc. and explained the application requirements. He inquired about cost effective torque control options that were available to ensure the quality and safety needs of their critical fastening applica

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