As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT MAIN GEAR DOWN LIGHT FAILED TO ILLUMINATE WHEN LANDING GEAR WAS EXTENDED. CREW RECYCLED GEAR WITH SAME RESULT. THEN EXTENDED THE LANDING GEAR USING THE EMERGENCY SYSTEM. THE LANDING WAS UNEVENTFUL. INVESTIGATION REVEALED THE INDICATOR LAMP HAD FAILED. LANDING SYSTEM WAS RESET AND RETRACTION TEST WAS SATISFACTORY. AIRCRAFT RETURNED TO SERVICE.