What was found
IN CRUISE NOSE GEAR UNSAFE LIGHT CAME ON, RIGHT GEAR HANDLE UP, RED LIGHT ON IN CRUISE AND APPROACH, LOWERED GEARS, NOSE GEAR RED STAYED ON. QRH PERFORMED, CONFIRMED VISUALLY NOSE GEAR DOWN AND LOCKED. INSPECTED NOSE GEAR SYSTEM, REMOVED AND REPLACED PROXIMITY SWITCH CONTROL BOX AND TESTED CIRCUIT. OPS CHECK GOOD, NO DEFECTS.