As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEAR DISAGREE DURING FLIGHT NOSE GEAR SHOWED RED WHITE GEAR DISAGREE CAS MESSAGE. AIRCRAFT DIVERTED TO DAY AND LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT, REMOVED AND REPLACED DOWNLOCK PROXIMITY SENSOR PER THE AIRCRAFT MAINTENANCE MANUAL. AIRCRAFT WAS RELEASED FOR SERVICE.