As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: UPON LANDING GEAR EXTENSION, THE LEFT MAIN DOOR DID NOT CLOSE. LANDING GEAR DOORS NOT CLOSED ECAM DISPLAYED. FOUND PROX SENSOR (27GA) SWITCH-TARGET PROXIMITY HAD A MISSING LOWER MOUNT BOLT AND A LOOSE UPPER MOUNT BOLT CAUSING ERRATIC INDICATION. REINSTALLED A NEW LOWER MOUNT BOLT AND TIGHTENED UPPER