As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EN ROUTE TO DTW OVEN NR 2, POSITION 1-27 IN THE UPPER DECK GALLEY CYCLED ON AND OFF AND BEGAN TO EMIT SMOKE. IT IS UNKNOWN WHAT IF ANY PRECAUTIONARY PROCEDURES WERE TAKEN BUT, THE FLIGHT CONTINUED ON TO DTW WHERE IT MADE AN UNEVENTFUL LANDING. MAINTENANCE WOULD REPLACE THE DEFECTIVE OVEN, SYSTEM OPERATION WAS NORMAL AFTER THE OVEN WAS REPLACED.