As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN DESCENDING THRU 10000 FT, DOOR RT FWD CABIN- UPPER ECAM AND 1R DOOR SHOWING OPEN IN AMBER ON DOOR/OXY PAGE. F/AT STATED THAT THE SLIDE ARMED LIGHT ILLUMINATED AT THE R1 DOOR. MAINTENANCE REPLACED THE R1 DOOR PROXIMITY SWITCH 13WV2 IAW AMM 52-71-11-0401.