As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED. DURING TAXI OUT A FLIGHT ATTENDANT REPORT SMOKE AND FIRE IN THE FIRST CLASS NR 1 OVEN. MAINTENANCE FOUND A PIECE OF PAPER TAPED TO THE BACK OF THE OVEN RACK. REMOVED AND REPLACED OVEN IAW AMM 25-35-19. OPERATIONAL CHECK GOOD.