As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NOSE LANDING GEAR UNSAFE LIGHT REMAINED ON AFTER GEAR RETRACTION. CREW VERIFIED VISUALLY THROUGH PEEP HOLE THAT GEAR WAS DOWN AND LOCKED. FLIGHT WAS RETURNED TO MSP AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED NOSE GEAR PROXIMITY SENSOR. OPERATIONAL CHECK NORMAL. AIRCRAFT RETURNED TO SERVICE.