As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RETURNED TO FIELD DUE TO A DOOR AFT CARGO ECAM WARNING. INSPECTED DOOR SENSOR AND TARGET, CHECKED SYSTEM THROUGH CFDS.CFDS FAULTED PROX SWITCH 32WV. FOUND PROX SWITCH LOOSE. CLEANED THE SWITCH AND SECURED. OPENED AND CLOSED DOOR SEVERAL TIMES, INDICATION NORMAL.