As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLT/ROA - FLT 2122 - DURING CLIMB OUT FROM CLT, LANDING GEAR WOULD NOT RETRACT. ACCOMPLISHED CHECKLIST PROCEDURES. RETURNED TO FIELD FOR A NORMAL LANDING. MAINTENANCE REPLACED THE LANDING GEAR SELECTOR VALVE. LEAKS AND OPS CHECKED GOOD. ALL GEAR RETRACT. (X)