As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEAR DISAGREE WARNING ON CLIMBOUT. GEAR UP MISTAKENLY DELAYED AND SELECTED UP ONCE AT 250KT. NOSE GEAR WOULDN€™T RETRACT. QRH FIXED ISSUE. (FLIGHT 4807 - FILED CLOSED)GEAR DISAGREE MESSAGE CAUSED BY OVERSPEED CONDITION OF THE GEAR. PERFORMED GEAR OVERSPEED INSPECTION PER CRJ 200 AMM 05-51-04. NO DEFECTS NOTED AT THIS TIME. CREW NOTED GEAR FUNCTIONED NORMALLY WHEN BELOW ALLOWABLE AIRSPEED. NO RECENT HISTORY OF SIMILAR FAULTS.