As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE FLGHT CREW WAS REQUESTED TO TURN RIGHT BY ATC AND FOUND THE AILERON CONTROLS JAMMED. AFTER TRYING TO MANEUVER THE AIRCRAFT, THE CONTROLS RETURNED TO NORMAL WITH A LOUD SNAP. MAINTENANCE FOUND THE LOCK SCREW AND NUT ASSEMBLY, SECURING THE AILERON CABLE ADJUSTMENT BARREL TO BE INTERFERING WITH THE UNDER FLOOR WEB LIGHTENING HOLE EDGE. THE SCREW HAD BEEN ABLE TO ROTATE OUT OF POSITION DUE TO LOOSE AILERON CABLES