As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: FLIGHT CREW REPORTED THAT THE 3R DOOR WILL NOT ARM. MAINTENANCE FOUND THE DOOR WAS OPENING AND CLOSING WITH NO ISSUES BUT NOTED THAT THE 3R DOOR SLIDE WOULD NOT INDICATE ARMED ON THE ECAM. MAINTENANCE FOUND THE 3R DOOR HANDLE PROXIMITY SWITCH 6WN2 WAS FAULTING AND REPLACED IT PER AMM 52-73-11. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED AITH NO ISSUES NOTED.