As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMBOUT AND GEAR RETRACTION RECEIVED "GEAR DISAGREE" WARNING. QRH FOLLOWED AND RETURNED TO AIRPORT WITH UNEVENTFUL LANDING. MAINTENANCE INSPECTED THE GEAR AND SERVICED THE NOSE LANDING GEAR STRUT NITROGEN/HYDRAULICS, GEAR SWINGS PERFORMED WITH NO DEFECTS PER BOMBARDIER AMM. (S)