As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
10/6/2022: N912SV LEFT KBIL @ APPROXIMATELY 2340 ENROUTE 1S3 (FORSYTH, MT). UPON REACHING CRUISE, THE PILOT OBSERVED THE "GEAR UNSAFE" LIGHT ILLUMINATED. AFTER A FEW MINUTES, THE LIGHT BECAME INTERMITTENT. THE CREW EXTENDED THE LANDING GEAR AND OBSERVED 3 GREEN LANDING GEAR "DOWN AND LOCKED" LIGHTS WITH NO "GEAR UNSAFE" LIGHT. THE CREW DECIDED TO RETURN TO KBIL AT THIS POINT. THE AIRCRAFT LANDED BACK AT KBIL @ APPROXIMATELY 0020 WITHOUT INCIDENT.