As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RETURNED TO DEPARTURE WITH A GEAR DISAGREE AND NOSE GEAR DOOR OPEN MESSAGE. RECEIVED A THREE DOWN AND LOCKED AND RETURNED. REMOVED AND REPLACED THE NLG CENTERED EXTEND PROXIMITY SENSOR WIRE HARNESS AND BRACKET AND PERFORMED OPS CHECK NO DEFECTS NOTED.