As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: RED ELECTRONIC CENTRALIZED AIRCRAFT MONITOR ALARM FOR LAVATORY SMOKE. 1 HOUR 10 MINUTES INTO FLIGHT SELF CLEARED AND UNABLE TO RECALL SMOKE DETECTOR 3L LAVATORY (E) SIGNALED. PASSENGER EXITED IMMEDIATELY WITH NO SMOKE OR NO SMELL NOTED BY FLIGHT ATTENDANTS. WASTE BIN INSPECTED WITH NO EVIDENCE. ACCOMPLISHED CABIN INTERCOMMUNICATION DATA SYSTEM SMOKE TEST FOR ALL THE LAVATORY'S. TEST IS GOOD.