As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
POP WITH SMOKE OUT OF COFFEE MAKER, RETURNING TO GATE TO HAVE IT CHECKED OUT. NO HISTORY. MAINTENANCE REMOVED AND INSPECTED COFFEE MAKER. CIRCUIT BREAKER TO REMAIN PULLED AND FWD COFFEE MAKER TO MCO/PLAC. REPLACED DC CONVERTER, CKS GOOD.