As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKE OFF IN CLT THE NOSE GEAR WOULD NOT RETRACT. AIRCRAFT RETURNED TO CLT AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED AIRCRAFT, CHECKED SENSOR CLEARANCES, SERVICED NLG STRUT, AND CYCLED THE LANDING GEAR. NO OTHER DEFECTS WERE NOTED AIRCRAFT WAS RELEASED FOR SERVICE.