As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FERRY FLIGHT FROM ORD TO MKE, CREW REPORTED: AFTER TAKEOFF FLAPS FAIL AND STAB AND MACH TRIM CAUTION MSGS. FLAPS FAIL AT 8 DEGREES. CW QRH. STAB AND MACH TRIM RESET OK. LANDING WEIGHT 36000, MAX BTMS 2112. CREW PERFORMED AND AIR RETURN TO ORD FOR FURTHER TROUBLESHOOTING/REPAIR.