As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAXI IN, CREW REPORTED A GRINDING NOISE COMING FROM RT SIDE AIRCRAFT FRONT, ACCOMPANIED BY STRONG ELEC SMOKE SMELL. SOUNDED LIKE MOTOR TRYING TO START & THEN SEIZING. COCKPIT DOOR CLOSED, NOISE HEARD BY FLIGHT ATTENDANT'S IN FWD GALLEY. TROUBLE SHOT TO AVIONICS VENT BLOWER 20HQ MOTOR FAILURE. R & R 20HQ MOTOR IAW AMM 21-26-51-400-001-A. PERFORMED SATISFACTORY OPERATIONS CHECK OF AVIONICS EQUIPMENT VENT SYS IAW AMM 21-26-00-710. ACCOMPLISHED CABIN AIR QUALITY JOB CARD 26L00021001, AIRCRAFT OK FOR SERVICE.