As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCI - FLIGHT 2394 - THE CREW REPORTED, RECEIVED A FALSE "LAV SMOKE" INDICATION IN FLIGHT. THE AIRCRAFT LANDED AT MCI WITHOUT INCIDENT. MAINTENANCE INSPECTED THE AIRCRAFT, OPERATIONALLY TESTED THE LAV SMOKE DETECTION SYSTEM WITH NO DEFECTS NOTED, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.