What was found
LAVATORY SMOKE INDICATION IN FLIGHT, NO CABIN SMOKE, PERSISTENT ALERT. FLIGHT ATTENDANT REPORTED ABNORMAL FUMES, NOT BURNING SMELL REAR OF ACFT. REPORTED INCREASED TEMPERATURE. DIVERTED & CFR REPORTED NO SMOKE OR FIRE, EXTERIOR OR INTERIOR, WITH THERMAL IMAGING EQUIP, LAVATORY SMOKE INDICATION STILL PRESENT. INSPECTED SMOKE DETECTOR & AREA, NO EVIDENCE OF SMOKE OR FIRE. LAVATORY SMOKE DETECTION SYS COMPLIED WITH OPERATIONS CHECK IAW AMM 26-14-00. OPERATIONS CHECKED GOOD, NO DEFECTS NOTED. ACFT OK FOR SERVICE.