As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RETURNED TO DEN, DUE TO A GEAR IN TRANSIT LIGHT PROBLEM. INDICATION WAS CAUSED BY FAULTY GEAR DOWN LOCK PROXIMITY SWITCH. REPLACED GEAR DOWN LOCK SWITCH. PERFORMED OPERATIONAL AND FUNCTIONAL CHECK OF THE SYSTEM. GEAR OPEARTION AND INDICATION FOUND NORMAL.