As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ANC INFLIGHT DFW-NRT, CREW REPORTED SMOKE SMELL IN COCKPIT. THE LOWER LT CABIN RECIRCULATION FAN OVERHEATED. THE CB WAS PULLED. FLIGHT DIVERTED ANC LANDED WITHOUT INCIDENT. THE LOWER LT RECIRCULATION FAN WAS PLACARDED INOPERATIVE IAW MEL 21-03. FLIGHT CONTINUED TO DESTINATION. REPLACED LT HAND RECIRCULATION FAN. SYS GND CHECKED NORMAL OPERATION CLOSED.