As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 6019, CMH TO CVG, THE FLIGHT CREW REPORTED A LAV SMOKE INDICATION AT AROUND 1,000 FT DURING CLIMB. THE INDICATION WENT AWAY AFTER ABOUT 4 MINUTES AND THE AIRCRAFT RETURNED TO CMH AND LANDED WITHOUT INCIDENT. MAINTENANCE VISUALLY INSPECTED THE ENGINES WITH NO DEFECTS NOTED. THE LAVATORY SMOKE DETECTOR WAS REPLACED. PERFORMED ENGINE RUNS WITH NO DEFECTS NOTED.