As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - FLT 0901 - AFTER RAISING LANDING GEAR, THE RIGHT HALF OF NOSE LANDING GEAR GREEN LIGHT REMAINED ILLUMINATED. CYCLED GEAR WITH NO SUCCESS. AIRCRAFT RETURNED DFW AND LANDED WITHOUT INCIDENT. REPLACED PROXIMITY SWITCH ELECTRONIC UNIT, ACCOMPLISHED GEAR SWING, AND SYSTEM GROUND CHECKED, NORMAL OPERATION. (X)