FAA proposes airworthiness directive for Airbus Helicopters MR servo-control torque loss

The FAA proposes a new airworthiness directive for multiple Airbus Helicopter models following a report of torque loss between the upper ball bearing end and a main rotor servo-control. The directive mandates inspections of nut tightening torque and corrective actions if needed, plus reporting. This is a regulatory safety action affecting helicopter operators and maintenance, with potential operational and cost implications.