What was found
(CAN) AFTER LANDING AND GOING TO TURN AROUND, THE PILOT TRIED TO TURN AROUND AND NOTICED THE LT MAIN TIRE WAS NOT TURNING AND ON VISUAL INSPECTION THE LT BRAKE CALIPER WAS FOUND WITH 1 OF THE 2 LOCATOR PINS WAS SHEARED AND THE CALIPER WAS RUBBING ON THE TIRE. THE ACFT WAS SHUTDOWN, PASSENGERS DE-PLANED AND FSS NOTIFIED TO CLOSE THE RUNWAY. MAINTENANCE ARRIVED AND CHANGED THE TIRE, BRAKE CALIPER AND DISC. THE ACFT WAS THEN RELEASED AND RETURNED TO DEPARTURE.