As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: LAVATORY SMOKE EICAS ON DESCENT. NO SMOKE DETECTED ON VISUAL INSPECTION. DID NOT FIND EICAS MESSAGE OR FDE FAULTS FOR 'LAVATORY SMOKE' EICAS MESSAGE ON GROUND. NO MAINTENANCE ACTION REQUIRED IAW. FIM 26-14 TASK 808.