As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) GEAR DISAGREE MSG AFTER TAKEOFF. NOSE GEAR WOULD NOT COME UP. THE ACFT RETURNED TO DEPARTURE AND LANDED WITHOUT FURTHER INCIDENT. MX INSP THE NLG AND REMOVED AND REPLACED THE NLG PRIORITY VALVE. OPS CHECKED CARRIED OUT AND NO FURTHER DEFECTS NOTED. ACFT RETURNED TO SERVICE.