As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE SMOKE WAS REPORTED FROM MID GALLEY OVEN 4B. PORTABLE FIRE EXTINQUISHER WAS DISCHARGED INTO OVEN. NO FLAMES REPORTED. OVEN REPORTED TO BE OFF AT TIME OF INCIDENT. MAINTENANCE REMOVED AND REPLACED OVEN IAW MM 25-32-02. OPERATIONAL CHECK NORMAL.