What was found
ENROUTE FROM OKO TO QPG, THE LANDING GEAR UNSAFE WARNING LIGHT ILLUMINATED DURING THE GEAR UPLATCH CHECK. THE FLIGH CREW CYCLED THE LANDING GEAR WITH THE WARNING INDICATION REMAINING THE SAME. THE FLIGHT RETURNED TO OKO FOR AN UNEVENTFUL LANDING. MAINTEANCE INSPECTED THE LANDING GEAR LOCATING A DEFECTIVE RIGHT MAIN GEAR UPLATCH SWITCH. MAINTENANCE REPLACED THE SWITCH AND PERFORMED A SUCCEFUL OPERATIONAL CHECK IN ACCORDANCE WITH THE MAINTENANCE MANUAL. THE AIRCRAFT WAS RETURNED TO SERVICE.