As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NRT - FLT 153 - FOUR HOURS INTO FLIGHT, COMPARTMENT ONE OVEN NR 3 HAD ELECTRICAL BURNING SMELL. TURNED OVEN OFF FOR REST OF FLIGHT AND LANDED NRT WITHOUT INCIDENT. PERFORMED CHECK OUT AND COULD NOT DUPLICATE SMELL. SYSTEM GROUND CHECK NORMAL OPERATION. (M)