As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLE FLIGHT NR 3323 THE CREW REPORTED SMOKE IN CABIN AND COCKPIT ALONG WITH A LAV SMOKE INDICATION. THE CREW DECLARED A EMERGENCY AND RETURNED TO CLEVELAND AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE INSPECTED AND CLEANED DEBRIS FROM LAV SMOKE DETECTOR. THE DEBRIS WAS LINT AND DUST. OPERATIONAL CHECKS WERE GOOD.THE AIRCRAFT WAS RELEASED FOR SERVICE.