As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW RECEIVED A LAVATORY SMOKE INDICATION AND F/A REPORTED A HAZE IN THE FIRST CLASS CABIN. CREW RAN LAVATORY SMOKE QRH AND SMOKE DISSIPATED. CREW RETURNED TO DEPARTURE AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED ACFT IAW AMM AND FOUND NO DAMAGE OR DEFECTS OR EVIDENCE OF BURNING. ACFT IS GOOD FOR SERVICE.