As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MICROWAVE SPARKED AND SMELLED OF SMOKE AND BURNED METAL AND POPPED CIRCUIT BREAKER. REMOVED GALLEY MICROWAVE OVEN PER SMM 25-30-66-000-801. INSPECTED WIRING AT CONNECTOR VERIFIED 115 VAC 3 PHASE AND GROUNDS PER SPM 20-12-01-05 NO DEFECTS NOTED REPLACED GALLEY MICROWAVE OVEN PER SMM 25-30-66-400-801.