As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INFLIGHT DFW TO EZE. CREW REPORTED OVEN 9C AT AFT GALLEY WAS SMOKING. FLIGHT ATTENDANTS DISCHARGED TWO HALON EXTINGUISHERS AND OPENED THREE PROTECTIVE BREATHING EQUIPMENT (PBE). FOUND DEFECTIVE OVEN HEATER ELEMENT. REPLACED OVEN AND REPLACED EXTINGUISHERS AND PBE.