As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
YVR - FLIGHT 2151 - WITH THE PARKING BRAKE HANDLE RELEASED, THE CREW WAS UNABLE TO MOVE THE AIRCRAFT. THE BRAKE WAS OBSERVED TO BE EXTREMELY HOT AND GLOWING. MAINTENANCE INSPECTED THE AIRCRAFT AND REPLACED BOTH THE NR 3 AND NR 4 BRAKE. OPERATIONAL CHECKS WERE GOOD AND THE AIRCRAFT WAS RETURNED TO SERVICE.