As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON APPROACH FOR LANDING, GOT AN ECAM GEAR NOT DOWN LOCKED MESSAGE. RECYCLED GEAR HANDLE, AND GEAR INDICATED DOWN AND LOCKED. *S/D* POST FLIGHT REPORT INDICATES NLG DOOR PROXIMITY SENSOR 39GA FAULTED DURING THE GEAR EXTENSION SEQUENCE. THIS SENSOR WAS REPLACED AND INSTALLED WITH THE PROPER GAPS. BOTH LANDING GEAR CONTROL INTERFACE UNIT (LGCIU) 1 AND LGCIU 2 WERE ALSO REPLACED AS PRECAUTION.