As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB TO 6000 FT, F/A REPORTED SMOKE WAS FILLING THE CABIN. CAPTAIN IMMEDIATELY LEVELED ACFT AT 4400 FT AND CREW RAN IMMEDIATE RETURN CHECKLIST. DECLARED AN EMERGENCY. LANDED WITHOUT INCIDENT. F/A STATED SMOKE WENT AWAY DURING DESCENT. FIRE DEPARTMENT COULD NOT FIND ANY HOT SPOTS. ACFT OUT OF SERVICE.