As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) PILOTS NOTICED SMOKE COMING FROM UNDER THE LT INSTRUMENT PANEL THAT QUICKLY STARTED TO FILL THE COCKPIT. THEY DESCENDED, DEPRESSURIZED AND DECLARED AN EMERGENCY.MAINTENANCE DISCOVERED THAT THE BLOWER MOTOR HAD SEIZED CAUSING THE SMOKE IN THE AIRCRAFT.