What was found
UPON LANDING, LANDING GEAR EXTENSION, THE NOSE LANDING GEAR GREEN LIGHT DID NOT ILLUMINATE. CHANGED BOTH BULBS, NO HELP. RECYCLED GEAR, NO HELP. RECYCLED GEAR A SECOND TIME AND GREEN LIGHT ILLUMINATED. INSPECTED NOSE LANDING GEAR, NO DEFECTS NOTED. REMOVED AND REPLACED THE NOSE LANDING GEAR DOWNLOCK POSITION SWITCH IAW DC-8 MM 32-60-00-2. CYCLED NOSE LANDING GEAR 3 TIMES. NOSE LANDING GEAR EXTENSION, RETRACTION AND INDICATION OPS CHECKED GOOD.