As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: FLIGHT ATTENDANT REPORTED BUZZING SOUND FOR 2 SECONDS THEN CHILLER STOPPED WORKING . SMELLED ELECTRICAL ODOR, TURNED OFF AFT CHILLER ODOR DISAPATED AFT GALLEY. MAINTENANCE REPLACED AFT GALLEY CHILLER AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 25-34-51.