As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT, THE 115A INVERTER CB POPPED AS MICROWAVE WAS BEING USED. CREW NOTICED ELECTRICAL SMOKE/BURNED SMELL IN THE CABIN. OPERATED MICROWAVE OVEN FOR 15 MINUTES WITH NO DEFECTS NOTED. REPLACED MICROWAVE IAW F-2000 M/M 25-20-00. OPERATIONAL CHECK GOOD.