As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 2966 - EWR - FLIGHT CREW REPORTED LAVATORY SMOKE INDICATION ON EICAS DURING CLIMBING WITH A SLIGHT SMELL OF SMOKE. CREW PERFORMED AIR RETURN AND LANDED AIRCRAFT UNEVENTFULLY. EWR MX REMOVED AND REPLACED LAV SMOKE DETECTOR PANEL AND PERFORMED OPERATIONAL CHECK SUCCESSFULLY. AIRCRAFT WAS APPROVED TO RETURN TO SERVICE.