As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 1119, MKE TO SDF. CREW REPORTED THAT AFTER DEPARTURE THE LANDING GEAR FAILED TO RETRACT ALONG WITH A LANDING GEAR LEVER DISAGREE MESSAGE. THE CREW RAN THE QRH PROCEDURE WITH NO SUCCESS. THE AIRCRAFT THEN RETURNED TO MKE AND LANDED WITHOUT INCIDENT. MAINTENANCE PERFORMED MULTIPLE GEAR SWING OPERATIONAL CHECKS AND FOLLOWED FIM 32-32-00-810-803 WITH NO DEFECTS NOTED AND THE AIRCRAFT WAS RETURNED TO SERVICE.