As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIVERTED, ON GEAR RETRACTION, ECAM MLG DOORS NOT CLOSED. ? (LEFT MAIN DOOR). TROUBLESHOT IAW TSM 32-61-00/101. FOUND PROXIMITY DETECTOR PROCESSING UNIT FAILING (54GB). REMOVED AND REPLACED PROXIMITY DETECTOR PROCESSING UNIT IAW AMM 32-31-71-401. SYSTEM OP CHECKED GOOD. OK TO CONTINUE.