As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - FLIGHT 2145, THE CREW REPORTED AN ELECTRICAL BURNING ODOR COMING FROM ABOVE THE COFFEE POTS. MAINTENANCE OPERATIONALLY CHECKED BOTH COFFEEMAKERS WITH NO DEFECTS, AND FOUND THE ODOR TO BE COMING FROM OLD COFFEE IN THE POTS. THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.