As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT MAIN GEAR GREEN LIGHT DID NOT ILLUMINATE AFTER GEAR SELECTED DOWN (PRIMARY). SECONDARY MAIN GEAR LIGHTS DID ILLUMINATE. CREW PERFORMED THE ABNORMAL PROCEDURE AND MADE NORMAL LANDING. ON FINAL APPROACH LIGHT ILLUMINATED. CLEANED PROXIMITY SENSOR PER M/M 32-61-01, AND OPS CHECKED GOOD.