As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAVATORY SMOKE WARNING INDICATION DURING CRUISE FLIGHT. NO EVIDENCE OF SMOKE OR FIRE FOUND BY THE FLIGHT ATTENDANT OR CRASH, FIRE & RESCUE. DEFERRED IAW MEL 26-2 AUTH 040356DM C M PROCEDURES, COMPLIED WITH CORRECTIVE ACTION. PERFORMED OPERATIONAL ON POST OD SMOKE DETECTOR FOR LAVATORY IAW AMM 26-14-00-700-801-A. LAVATORY SMOKE DETECTOR, OPERATIONS CHECKED GOOD. MEL RESTORED