As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SJU - FLIGHT ATTENDANT REPORTED THAT FIRST CLASS OVEN NUMBER 1 CAUGHT ON FIRE. CIRCUIT BREAKER TO OVEN WAS PULLED AND EXTINGUISHER WAS USED TO PUT OUT FIRE. FLIGHT LANDED SJU WITHOUT INCIDENT. REPLACED OVEN AND EXTINGUISHER. SYSTEM GROUND CHECK NORMAL OPERATION.