What was found
CREW NOTICED SLIGHT BINDING IN AILERON'S WHEN MOVING F/O'S CONTROL YOKE. INVESTIGATION FOUND THE CAUSE TO BE THE AILERON CONTROL AFT RIGHT QUADRANTS MOUNT BEARING. THE QUADRANT ASSEMBLY WAS REPLACED. AFTER REMOVAL, A CLOSER INSPECTION OF THE QUADRANT FOUND THE BEARING TO BE BINDING AND CAUSING WEAR TO ITS MOUNT SHAFT. THE NEW QUADRANT CORRECTED THE PROBLEM AND THE AIRCRAFT WAS RELEASED FOR SERVICE.