As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING GROUND OPERATION PRIOR TO TAXI THE AIR-CONDITIONING FAILED AND AN ODOR WAS OBSERVED IN THE CABIN. THE AIR-CONDITIONING WAS SELECTED OFF THE AIRCRAFT WAS SWAPPED WITH ANOTHER AIRCRAFT FOR THE FLIGHT. THE COMPRESSOR DRIVE MOTOR WAS FOUND TO BE OVERHEATED AND WOULD NOT TURN ELECTRICALLY.