As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT DIVERTED TO MIA BECAUSE OF A BUZZING NOISE AND ELECTRICAL ODOR IN AFT GALLEY. BOTH THE BUZZING NOISE AND THE ELECTRICAL ODOR DISSIPATED AFTER GALLEY POWER WAS TURNED OFF. MAINTENANCE REPLACED THE RIGHT AFT FLOOR LAMP. ADDITIONALLY, MAINTENANCE FOUND 2 INLET SCREENS ABOVE AFT GALLEY OVENS BLOCKED. THE SCREENS WERE CLEANED AND THE AIR FLOW IS NOW NORMAL.