What was found
(YXJ) FLIGHT ATTENDANTS REPORTED NBR 2 GALLEY OVEN OVERHEATED WITH ALL POWER REMOVED. APPROPRIATE CIRCUIT BREAKERS WERE PULLED. OVEN WAS STILL DEEMED OVERHEATED 40 MINUTES AFTER BREAKERS WERE PULLED. FLIGHT DIVERTED TO YXJ AND LANDED WITHOUT INCIDENT. MAINTENANCE ISOLATED THE GALLEY BUSS BY DISABLING THE UTILITY BUSS FROM THE COCKPIT. THE FLIGHT CONTINUED TO DTW. MAINTENANCE INSPECTED THE OVEN CAVITY ADN WIRING WITH NO DISCREPANCIES NOTED. REPLACED THE OVEN AS A PRECAUTION.