What was found
KISP - ON APPROACH (PART 91 - NO PASSENGERS) WHEN GEAR HANDLE LOWERED, DID NOT GET A GREEN LIGHT FOR THE NLG. WITH GEAR HANDLE DOWN AND NO GREEN LIGHT FOR THE NLG, THE ALTERNATE INDICATOR (PIN POSITION ON CENTER CONSOLE) WAS CHECKED. IT INDICATED NLG DOWN. TOWER SAID ALL GEAR APPEARED DOWN. HYD PRESS GOOD, AND DID NOT HAVE A RED NLG LIGHT. LAMP TEST INDICATED ALL LIGHTS FUNCTIONING. AFTER NOTIFYING TOWER AND MAKING A LOW APPROACH, NLG GREEN LIGHT CAME ON. INSTALLED NLG DOWN AND LOCK SWITCH. ACCOMPLISHED NORMAL GEAR SWING IAW MM CHAPTER 32-30-00. ALL SYSTEM OPS NORMAL.