What was found
WHEN LANDING GEAR WAS PUT DOWN ON FINAL, WE HAD LEFT MAIN UNSAFE INDICATIONS. LIGHT FLICKERED OFF/ON IN CONJUNCTION WITH RED UNSAFE LIGHT. EMERGENCY CHECKLIST WAS USED AND GEAR BOTTLE BLOWN. LANDING UNEVENTFUL. REMOVED AND REPLACED LH MAIN GEAR ACTUATOR WITH NEW PART PN OFF: 9912537-3, SN OFF: 0672B, PN ON: 9912537-5, SN ON: 2299, BLEAD ACTUATOR GOOD FOR DEATAILS SEE J.E. WORK ORDER AOG-99576.