As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - FLIGHT 4340, THE FLIGHT ATTENDANT REPORTED A BIT OF SMOKE OR SOME KIND OF BURNING WHEN NR 1 COFFEE POT SELECTED ON. MAINTENANCE REMOVED AND REPLACED THE NUMBER ONE COFFEE POT, OPERATIONALLY TESTED WITH NO DEFECTS AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.