As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED A SMOKE TOILET MESSAGE WITH SMOKE IN CABIN. MAINTENANCE TROUBLESHOT, DETERMINED THE LIGHT UNIT CAUSED SMOKE, SECURED, AND DEFERED THE LAVATORY LIGHT UNIT. PARTS ARE ON ORDER. SUPPLEMENTAL SDR WILL BE SUBMITTED WHEN REPAIRED. AIRCRAFT WAS RELEASED FOR SERVICE. R & R LAV RETURN TO SEAT SIGN IAW AMM 33-24-04-400-801.