As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT RECIRFAN STARTED TO MAKE NOISE SHORTLY THERAFTER SMOKE SMELL, TURNED THE LEFT REC FAN OFF, SMOKE SMELL CLEARED. REMOVED AND REPLACED LEFT REC FAN PER M/M 21-25-01, OPS CHECK GOOD. ROTABLE PARTS CHANGE WAS INDICATED - TT # 1474576 S/N OFF 01100 IPC REFERENCE #.