As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW RECEIVED A LAV SMOKE CAS MESSAGE AND DIVERTED TO CMH. MAINTENANCE INSPECTED AND BLEW OUT THE LAV SMOKE DETECTOR WITH NITROGEN AND CLEANED THE CANNON PLUG IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 26-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.