As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AT FL 350 1/2 WAY THROUGH 3 HOUR FLIGHT, SLIDE ANNUNCIATION ON ECAM FOR DOOR 3R FLASHES INTERMITTENTLY . EMERGENCY EXIT AMBER CAUTION ALSO FLASHES INTERMITTENTLY. PRESSURIZATION IS NORMAL ANDVISUAL CHECK OF DOOR AND SLIDE IS NORMAL. MAINTENANCE REPLACED RIGHT HAND AFT EMERGENCY EXIT ARMING HANDLE PROXIMITY SENSOR 6WN2 AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 52-73-11.