As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER STARTING THE RT ENG ELEC SMELL & SMOKE CAME THROUGH THE AIR CONDITIONING VENTS, ACFT WAS SHUT DOWN. TROUBLE SHOT THE DISCREPANCY TO A DEFECTIVE CABIN AFT BLOWER MOTOR. THE SYS WAS DEFERRED IAW MEL & THE BLOWER MOTOR WAS REPLACED A DAY LATER. ACFT WAS RETURNED TO SERVICE.