As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE RIGHT GEAR DOWN INDICATION LIGHT WAS INOPERABLE SO THE CAPTAIN DECLARED AN EMERGENCY INTO SDF AND LANDED WITHOUT INCIDENCE. THE RIGHT GEAR DOWN INDICATION LIGHT WAS MEL'ED AND THE AIRCRAFT WAS FLOWN TO BKW. THE MECHANIC CLEANED AND LUBED THE DOWNLOCK SWITCH IAW SD3-30 MM. MEL CLEARED AND OPS CHECK GOOD.