As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLE - FLT 4194 - THE CREW REPORTED THAT AFTER TAKEOFF THEY RECEIVED A LAVATORY SMOKE WARNING. THE AIRCRAFT RETURNED TO CLEVELAND WITHOUT FURTHER INCIDENT. MAINTENANCE INSPECTED AND FOUND NO EVIDENCE OF SMOKE OR FIRE AND REPLACED THE LAVATORY SMOKE DETECTOR IAW EMB MM 26-14-01. OPS CHECKS WERE GOOD IAW 26-14-00. THE AIRCRAFT WAS RELEASED FOR SERVICE. (M)