As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) FIRE FLAMES AND SPARKS IN THE GALLEY OVEN AREA. AIRCRAFT RETURNED TO BASE. MAINTENANCE TROUBLE SHOOTING REVEALED OVEN SOCKETS IN POSITION 16 & 17 BURNT. OVEN RECEPTACLES POSITION 16 & 17 CHANGED. OVENS SENT BACK TO COMMISSIONARY FOR REPAIRS. SYSTEM CHECKED SERVICEABLE.