As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT MAIN MOUNT FAILED TO INDICATE DOWN AND LOCKED, (RED UNSAFE LIGHT) WAS ILLUMINATED. FOLLOWED CHECKLIST PROCEDURE, BLEW DOWN GEAR AND LANDED UNEVENTFULLY. REPLACED DOWN LOCK SWITCH ON RIGHT MAIN GEAR OPS CHECK GOOD IAW CE680 MM CHAP 32-30-40.