As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 5086 - ON T/O FROM CLT UPON GEAR RETRACTION RECEIVED GEAR DISAGREE AND NOSE DOOR OPEN WARNING MESSAGE. A/C RETURNED BACK TO CLT AND LANDED SAFELY. INSPECTED A/C AND FOUND NOSE TORQUE LINK DISCONNECTED, RECONNECTED TORQUE LINK. NO FURTHER DEFECTS NOTED.