As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ORD INFLIGHT - CREW REPORTED UNABLE TO RETRACT NOSE GEAR. PLACED GEAR DOWN AND GREEN LOCKED LIGHT ILLUMINATED. RETURNED TO ORD AND LANDED WITHOUT INCIDENT. REPLACED TURNING TUBE THRUST BEARING AND REPACKED NOSE LANDING GEAR. SYSTEM GROUND CHECKED NORMAL OPERATION.