As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING APPROACH ON GEAR EXTENSION, RECEIVED BOTH GREEN AND RED LIGHT INDICATION. MANUALLY EXTENDED NOSE GEAR, ALL INDICATIONS WERE NORMAL. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE CLEANED LOCK AND POSITION SWITCH CANNON PLUGS AND PERFORMED NOSE GEAR RETRACTED AND EXTENSION, ALL INDICATIONS WERE NORMAL.