What was found
DAY-ROC - FLT 1743 - WHEN THE LANDING GEAR WAS LOWERED ON APPROACH THE NOSE GEAR UNSAFE RED LIGHT REMAINED ILLUMINATED. THE AIRCRAFT EXECUTED A GO-AROUND, AND AFTER SEVERAL MINUTES THE NOSE GEAR GREEN LIGHT ILLUMINATED AND THE RED UNSAFE LIGHT WENT OUT. THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE DETERMINED THE PROBLEM TO BE INDICATION AND THE AIRCRAFT WAS FERRIED TO PIT FOR REPAIRS. PIT MAINTENANCE REPLACED THE NOSE GEAR LOCK SWITCH AND PERFORMED A GEAR SWING. ALL CHECKED NORMAL. (M)