As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB ON RETRACTION OF FLAPS, INBOARD FLAPS DID NOT RETRACT FROM THE 5 DEGREE MARK. FLAP HANDLE WAS PLACED IN THE 30 DEGREE MARK AND EXTENDED NORMALLY. AIRCRAFT RETURNED TO ORD AND LANDED WITHOUT INCIDENT. REPLACED ASYMMETRY RELAY R187 AND ALTERNATE OUTBOARD FLAP MOTOR. PERFORMED OPERATIONAL CHECK, SYSTEM CHECKED OK.