As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB THE CREW RECEIVED A GEAR DISAGREE MSG. THEY RAN THE QRH, DECLARED AN EMERGENCY AND RETURNED TO CLT. TRUCKS ROLLED. THE AIRCRAFT LANDED SAFELY AND WAS ABLE TO TAXI TO THE GATE WITH NO ISSUES. REMOVED AND REPLACED THE LANDING GEAR SELECT HANDLE AND PERFORMED GEAR SWINGS, OPS CHECK GOOD.