As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
F/A REPORT BURNING SMELL SUSPECT OUTLET AT 4L TURNED OFF UTILITY BUS SMELL ABATED. SMOKE/ODOR QUESTIONNAIRE CARRIED OUT WITH CREW, CREW VERBAL "AFTER CYCLING UTILITY BUSES" NO SMELL NOTED, OVEN 3 FOUND TO HAVE EXCESSIVE CARBON/ BURNT SOOTY DEPOSITS AROUND FAN AND BEARING M & E 99-2532-9-0003.