As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PHL- OVEN NR 1 4-2 BECAME VERY HOT. CABINETS ABOVE AND WALL BESIDE OVEN BECAME SO HOT THEY WERE TO HOT TO TOUCH. ODOR OF MELTING PLASTIC IN AREA MOST LIKELY FROM WALL COVERING PULLED CB DISCONTIUED USING. MAINTENANCE REMOVED AND REPLACED THE OVEN AND PERFORMED A SATISFACTORY OPERATIONAL TEST.