As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ORD INFLIGHT T1545/02FEB - NOSE GEAR UNSAFE LIGHT ILLUMINATED AFTER NOSE GEAR RETRACTION. RETURNED TO ORD AND LANDED WITHOUT INCIDENT. REPACKED NOSE STRUT ASSEMBLY AND REPLACED LOWER TURNING TUBE BEARING ASSEMBLY. SYSTEM GROUND CHECKED NORMAL OPERATION.