As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF THE FLIGHT CREW RETRACTED THE LANDING GEAR. THE NLG DOORS REMAINED OPEN. AIRCRAFT RETURNED TO CID. MAINTENANCE INSPECTED THE NLG DOORS. NO DEFECTS NOTED. AIRCRAFT FERRIED TO STL. MAINTENANCE PERFORMED FIM TASK 32-32-00-810-802. REMOVED AND REPLACED RELAY K0642. CLEANED ALL PROX SWITCHES AND CONNECTORS. PERFORMED A RETRACTION CHECK AND ALL SYSTEMS OPS CHECKED GOOD.