As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NOSE GEAR DISAGREE WARNING MESSAGE ON TAKEOFF, NOSE GEAR DID NOT RETRACT. THE AIRCRAFT RETURNED TO DAY AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED NOSE GEAR AND FOUND EXCESSIVE ICE ON SENSOR. AFTER TEST OF PSEU, ADJUSTED SENSOR AND CLEARED ICE. GEAR WAS CYCLED AND SYSTEM TESTED PER THE MANUFACTURERS MAINTENANCE MANUAL. AIRCRAFT WAS RELEASED FOR SERVICE.