What was found
THE NLG RED UNSAFE LIGHT ILLUMINATED DURING DESCENT. ABNORMAL PROCEDURES WERE FOLLOWED, BUT THE LIGHT REMAINED ON. THE INDICATION LIGHTS WERE NORMAL WHEN THE GEAR WAS EXTENDED. THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE NOSE GEAR LOCK SENSOR AT FAULT. THE SENSOR WAS REMOVED AND REPLACED. A GEAR SWING WAS PERFORMED PER MM 32-00 WITH OPERATION AND INDICATIONS CHECKING GOOD.