What was found
DURING APPROACH, SELECTED GEAR DOWN AND THE LEFT MAIN GEAR LIGHT DID NOT SHOW DOWN AND LOCKED. MANUAL (T-HANDLE) GEAR EXTENSION PULLED TO BLOW GEARS DOWN, LANDING UNEVENTFUL. - REPLACED 4 LAMPS IN ANNUNCIATOR PANEL, SWUNG GEARS SEVERAL TIMES, SERVICED NITROGEN, AND HYDRAULIC SYSTEM, ALL SYSTEMS TEST GOOD IAW CE 560 MM CHAPTER 32-00.