As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
JFK - FLIGHT ATTENDANT REPORTED SMOKE COMING FROM FIRST CLASS GALLEY COFFEEMAKER. FLIGHT ATTENDANT USED HALON FIRE EXTINGUISHER. FLIGHT RETURNED JFK LANDED WITHOUT INCIDENT. AFTER ARRIVAL REMOVED BOTH FIRST CLASS GALLEY COFFEEMAKERS AND INSPECTED THE AREA. NO ABNORMALITIES NOTED. REPLACED BOTH COFFEEMAKERS AS PRECAUTIONARY. REPLACED HALON EXTINGUISHER. SYSTEM GROUND CHECK NORMAL OPERATION.