As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEAR INTRANSIT LIGHT ILUMINATED AFTER GEAR UP. RECYCLED C/B AND LANDING GEAR, NO IMPROVEMENT. LIGHT WENT OUT ON IT OWN AFTER 50 MINUTES OF FLIGHT. MAINTENANCE FOUND LT GEAR DOOR UPLOCK SENSOR TARGET BINDING IN ACTUATOR AREA. CLEANED AND LUBRICATED SENSOR TARGET MECHANISM. REQ TEST FLIGHT FOR OPS CHECK DUE TO INADEQUATE FACILITIES IN DTW.