As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: DOOR LEFT AFT EMERGENCY EXIT ECAM ON TAKEOFF ROLL. THE FLIGHT CREW REJECTED TAKEOFF BELOW 80 KNOTS. MAINTENANCE CONFIRMED L3 DOOR OPEN INDICATES INTERMITTENTLY ON ECAM CAUSING FLIGHTR ATTENDANT CALL LIGHTS TO FLICKER. MAINTENANCE REPLACED PROXIMITY SENSOR 61WV1 AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK.