As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING APPROACH WHEN GEAR EXTENDED, OBSERVED ALL THREE GEAR GREEN LIGHTS ILLUMINATE FOLLOWED BY EXTINGUISHING OF LEFT MAIN GEAR GREEN LIGHT. EMERGENCY DECLARED. LANDING UNEVENTFUL. MAINTENANCE REMOVED AND REPLACED BOTH LEFT MAIN GEAR GREEN LIGHT INDICATOR BULBS.