As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW REPORTED RECEIVING A LANDING GEAR LEVER DISAGREE FAIL MESSAGE AND THE NOSE GEAR FAILING TO RETRACT. THE CREW MADE AN UNSCHEDULED LANDING WITHOUT INCIDENT. MAINTENANCE REPLACED THE NLG UPLOCK BOX AND LANDING GEAR SOLENOID VALVE. OPS CHECKS AND LANDING GEAR SWINGS WERE GOOD WITH NO FURTHER DEFECTS NOTED.