As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NOSE GEAR UNSAFE LIGHT ILLUMINATED ON APPROACH. FLY BY TOWER INDICATED GEAR WAS DOWN. LANDED UNEVENTFULLY. TROUBLESHOT WIRING TO NLG DOWNLOCK SWITCH, FOUND CONTACTS AT CONNECTOR PLUG NEEDED CLEANING. CLEANED AND REATTACHED. CONDUCTED GEAR SWING, OPS CHECK GOOD.