As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 6479 MDW TO ATL AFTER TAKEOFF LANDING GEAR FAILED TO RETRACT TO THE UP POSITION. FLIGHT DIVERTED TO ORD, LANDED WITHOUT INCIDENT. A/C WAS FERRIED FROM ORD TO IND FOR FURTHER TROUBLESHOOTING AND MAINTENANCE. IND MAINTENANCE REMOVED AND REPLACED LANDING GEAR CONTROL LEVER. SYSTEM OPERATION NORMAL.