As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ELECTRICAL ODOR FROM AFT CABIN. SWITCHED OFF BOTH UTILITY BUSSES AND OPERATED EQUIPMENT COOLING IN OVERHEAD TO CLEAR CABIN. *S/D* CENTER GALLEY WARMING OVEN SMOKED DUE TO PLASTIC FOUND MELTING IN OVEN CAUSING SMOKE AND BURNING SMELL. CLEANED OVEN. NO FURTHER EVIDENCE OF SMOKE OR BURNING SMELL.