As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CABIN CREW REPORTED A SLIGHT BURNING RUBBER ODOR COMING FROM THE FORWARD GALLEY. THE ODOR OCCURRED ONE HOUR IN CRUISE. THE CREW REPORTED THE ODOR DISSIPATED WHEN GALLEY CIRCUIT BREAKERS WERE PULLED. MAINTENANCE FOUND EVIDENCE OF A BURNED ODOR AND BURNS FROM THE NR 1 OVEN. THE OVEN WAS R & R IAW THE AMM.