As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 6242 - MSY-CVG - CLIMBING THROUGH FL310, A FAINT HAZE AND ODOR OF SMOKE ENTERED COCKPIT FOLLOWED BY LAV SMOKE EICAS WARNING. PERFORMED QRH. VERIFIED FA ALSO SMELLED SMOKE AND RECEIVED LAV SMOKE ALARM IN GALLEY. DECLARED AN EMERGENCY. SMOKE BEGAN TO DISSIPATE DURING DESCENT. LANDED WITHOUT INCIDENT. THE AIRCRAFT WAS MAINTENANCE FERRIED TO SDF WHERE THE NR 1 ENGINE WAS REPLACED.