As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FINAL APPROACH, NOSE GEAR INDICATION DID NOT SHOW DOWN AND LOCKED, MADE MISSED APPROACH GO-AROUND. ON SECOND EXTENSION OF LANDING GEAR INDICATIONS SHOW NORMAL. AIRCRAFT LANDED WITHOUT INCIDENT. BUSHING ON UPPER DOWN AND LOCK SWITCH WAS MISSING. REPLACED BUSHING AND BOTH UPPER AND LOWER GEAR DOWN AND LOCK SWITCHES AS A PRECAUTION.