As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAV SMOKE INDICATION WHILE INFLIGHT.-C/A-T/S "LAV SMOKE" IN FLIGHT EICAS MESSAGE IAW ERJ175 FIM 26-14-00-810-803-A, NO FAULT FOUND. PERFORMED LAVATORY SMOKE DETECTOR FUNCTIONAL TEST IAW ERJ175 AMM 26-14-01. OPS CHECK GOOD. NO FURTHER DEFECTS NOTED AT THIS TIME.