As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: FLIGHT ATTENDANT REPORTED EXCESSIVE HEAT UNDER GALLEY FLOOR. APPROXIMATELY 15 MINUTES AFTER FIRST INDICATION F/A REPORTED ELECTRIC BURNING SMELL. MAINTENANCE ACCOMPLISHED JOB CARD 26L00021001, KNOWN SOURCE OF ODOR WAS FWD GALLEY FLOOR HEATING. ODOR DISSIPATED AFTER DEACTIVATION OF FLOOR HEAT SYSTEM. REMOVED AND REPLACED CONTROL UNIT FOR FLOOR HEATER (60DS) IAW AMM 25-27-34. OPERATIONAL CHECK'S NORMAL.