As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HLN - NLG INTRANSIT LIGHT REMAINED ON AFTER LANDING GEAR SELECTED UP. FLIGHT RETURNED TO FIELD WITHOUT INCIDENT. AIRCRAFT WAS INSPECTED AND FERRIED TO PDX FOR REPAIRS. BOTH NLG UPLOCK SWITCHES WERE REPLACED AND ALL GROUND TESTS WERE NORMAL. AIRCRAFT RELEASED FOR SERVICE.