As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER LOWERING THE LANDING GEAR ON FINAL APPROACH, THE LEFT MAIN GEAR LIGHT AND THE LEFT HALF OF THE RIGHT MAIN GEAR LIGHT DID NOT ILLUMINATE. PERFORMED GA, RECEIVED GROUND VISUAL CONFIRMATION THAT LEFT MAIN GEAR APPEARED DOWN, AND RAN QRH PROCEDURES. LANDED UNEVENTFULLY. LIGHT TEST SHOWED ALL 3 LAMPS INOP. REMOVED AND REPLACED 3 EA LAMPS. OPS CHECK GOOD. REF AMM 33-13-00-2.