As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 6399 CMH-BDL - ON CLIMBOUT LAV SMOKE INDICATION ON EICAS. CREW REPORTED SMELLING SMOKE BUT SAW NO VISUAL SIGNS OF FIRE. THE AIRCRAFT RETURNED TO FIELD AND LANDED UNEVENTFULLY. MAINTENANCE PERFORMED ENGINE RUNS AND COULD NOT DUPLICATE LAV SMOKE. REMOVED AND REPLACED LAV SMOKE DETECTOR IAW EMB 145 AMM. OPS CHECK GOOD.