As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING APPROACH THE LANDING GEAR WAS LOWERED AND THE RT MAIN UNSAFE LIGHT REMAINED ILLUMINATED AND THE RT MAIN GREEN LIGHT INDICATOR WAS NOT ILLUMINATED. THE ACFT LANDING UNEVENTFULLY. UPON INSP THE RT MLG ACTUATOR SWITCH WAS FOUND TO BE OUT OF ADJUSTMENT RESULTING IN A FALSE UNSAFE INDICATION. THIS SWITCH WAS REPLACED ON OCT 18 AND HAD APPROX 6 HOURS FLIGHT TIME.