As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
JFK INFLIGHT BOS-MIA - FLIGHT ATTENDANTS REPORTED SMOKE COMING FROM INSIDE FIRST CLASS GALLEY OVEN. EMERGENCY DECLARED FLIGHT DIVERTED JFK LANDED WITHOUT INCIDENT. FOUND FOOD BURNED ON HEATING ELEMENT OF OVEN CAUSING SMOKE. REPLACED OVEN. SYSTEM GROUND CHECK NORMAL OPERATION.