As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF FLIGHT ATTENDANT NOTIFIED CAPTAIN OF SMOKE IN THE CABIN. A MOMENT LATER HAZE AND A SMELL OF SMOKE CAME INTO THE COCKPIT. DECLARED AN EMERGENCY, RETURNED TO MIA. OXYGEN MASK WERE NOT DEPLOYED, LANDED WITHOUT INCIDENT. INSPECTED THE AIR DISTRIBUTION SYSTEM. REPLACED LEFT CABIN RECIRCULATING FAN. FAN IS ON CONDITION TOTAL TIME UTILIZED BY GIA IS 1,841.6 HOURS.