What was found
ON APPROACH THE CREW RECEIVED EICAS LAVATORY SMOKE INDICATION & THE FLIGHT ATTENDANT REPORTED THE LAVATORY HORN WAS SOUNDING. THE FLIGHT ATTENDANT INDICATED NO VISIBLE SMOKE OR SMELL. THE CREW DECLARED AN EMERGENCY, COMPLIED WITH AOM VOL 1 PROCEDURES & LANDED WITHOUT INCIDENT. CFR CLEARED THE ACFT. LAVATORY SMOKE INDICATION ON EICAS. PERFORMED GVI OF EXTERIOR FOR POSSIBLE LIGHTNING STRIKE NONE FOUND. PERFORMED HIGH POWER ENG RUN WITH CREW NDN. PERFORMED OPERATIONS CHECK OF LAVATORY SMOKE DETECTOR IAW AMM 26-14-00. OPERATIONS CHECKED GOOD.