As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLE - FLT 3815 - THE CREW REPORTED AFTER TAKEOFF, RECEIVED A LAVATORY SMOKE WARNING. THE AIRCRAFT RETURNED TO CLEVELAND WITHOUT FURTHER INCIDENT. MAINTENANCE INSPECTED AND FOUND RESIDUAL COMPRESSOR WASH FLUID FROM PREVIOUS OVERNIGHT MAINTENANCE. PERFORMED ENGINE GROUND RUNS IAW EMB 135 MM 71-00-01 AND 26-23-00, NO DEFECTS WERE FOUND. THE AIRCRAFT WAS RELEASED FOR SERVICE. (M)