As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON APPROACH CREW REPORTED THE LT MAIN GEAR DOWN AND LOCKED LIGHT WOULD NOT ILLUMINATE. GEAR WAS CYCLED 6 TIMES AND ON THE 6TH ATTEMPT THE DOWN AND LOCKED LIGHT FINALLY ILLUMINTATED. EMERGENCY WAS DECLARED AND AIRCRAFT LANDED SAFELY. MAINTENANCE FOUND THE LT MLG DOWNLOCK SWITCH INOPERATIVE. THE SWITCH WAS REPLACED.