As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: FA REPORTS BURN HOLES ON INSIDE OF MICROWAVE DOOR IN FORWARD GALLEY (LINING OF DOOR INSIDE) AND DISCOLORING OF OUTER PANE THAT CORRESPONDS WITH BURN HOLES ON INTERIOR OF DOOR. MAINTENANCE REPLACED MICROWAVE OVEN.