As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ORD INFLIGHT T1426 - AFTER GEAR RETRACTION RED NOSE GEAR DOOR LIGHTS REMAINED ILLUMINATED. RECYCLED GEAR WITH NO HELP. RETURNED TO ORD AND LANDED WITHOUT INCIDENT. REPACKED NOSE LANDING HEAR STRUT. SYSTEM GROUND CHECKED NORMAL OPERATION.