What was found
CREW REPORTED TO HMC: LAV 2R SMOKE ALARM ACTIVATED DURING FLIGHT; FLIGHT ATTENDANT FOUND CUSTOMER FROM SEAT 8L ATTEMPTING TO EXTINGUISH SMOKING CELL PHONE IN THE LAV TOILET; CUSTOMER ATTEMPTED TO EXTINGUISH SMOKE CONDITION BY PLACING CELL PHONE IN THE LAV SINK, FOLLOWED BY PLACING THE PHONE IN TOILET; FLIGHT ATTENDANT WAS ABLE TO REMOVE PHONE FROM THE TOILET AND PLACE CELL PHONE IN THERMAL CONTAINMENT BAG. R/R''D MAIN CABIN THERMAL CONTAINMENT BAG AS REQUIRED. PHONE INSIDE THE THERMAL BAG PLACED IN AIR SUP OFFICE. ACCOMPLISHED INSPECTION PER AMM 05-51-50 NO DEFECTS FOUND.