As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON APPROACH AT GEAR EXTENSION, ONLY THE NOSE AND RT MAIN GREEN CAME ON, NO LT GREEN AND THE RED UNLOCK STAYED ON. CYCLED THE GEAR UP AND DOWN, THE RESULT WAS 3 GREEN LIGHTS AND NO RED LIGHT. DID NOT BLOW DOWN THE GEAR. LANDED SAFELY. TROUBLESHOT TO INTERMITTENT LT MLG SWITCH MOUNTED IN THE ACTUATOR. REPLACED LT MLG ACTUATOR IAW MM CHAP 32-31-04. OPS CHECK AND LEAK CHECK GOOD AT THIS TIME.