As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED A GEAR DISAGREE MESSAGE AFTER TAKEOFF. CREW FOLLOWED THE QRH AND LANDED WITHOUT INCIDENT IN DAY. MAINTENANCE INSPECTED AND SERVICED THE NOSE LANDING GEAR SHOCK STRUT OIL AND NITROGEN IAW THE AIRCRAFT MAINTENANCE MANUAL. MAINTENANCE ALSO PERFORMED OPERATIONAL TESTS. AIRCRAFT WAS RELEASED FOR SERVICE.