As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ORD - INFLIGHT IND-DFW. CREW REPORTED ON TAKEOFF NOSE GEAR DOOR OPEN LIGHT ILLUMINATED. ACCOMPLISHED QRH ALL OTHER INDICATIONS SEEMED NORMAL. FLIGHT DIVERTED ORD LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED D1-32 SENSOR. SYSTEM GROUND CHECK NORMAL OPERATION.