As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT LANDING GEAR INDICATION LAMP INOP WITH LANDING GEAR SELECTED DOWN, NO OTHER WARNING INDICATIONS. EMERGENCY GEAR EXTENSION WAS PERFORMED. DIVERTED TO AN ALTERNATE AIRFIELD FOR LANDING FOR SAFETY WITH EMERGENCY EQUIPMENT. LAMP CAME ON UPON LANDING.