What was found
AIRCRAFT WAS NOT GNDED. WHILE IN ROUTE, ECAM DOOR LT AFT CABIN, ECAM DISPLAYED MULTIPLE TIMES, THEN DISAPPEARED. CABIN CREW VISUAL INSPECTION & NORMAL PRESSURIZATION INDICATED A NUISANCE ECAM. REPLACED SLIDE ARMED INDICATOR 2WN1 IAW AMM 52-73-11 & ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK.