What was found
EUG - FLT 121 - AIRCRAFT DEPARTED OUT OF EUG AT 0645 LOCAL TIME. DURING LANDING GEAR RETRACTION, LT MAIN INTRANSIT LIGHT REMAINED ON. THE LANDING GEAR WAS CYCLED AGAIN WITH NO CHANGE IN INDICATION. THE AIRCRAFT RETURNED TO EUG AIRPORT WITHOUT FURTHER INCIDENT, LANDING AT 0704 LOCAL TIME. AFTER INSPECTION OF LANDING GEAR FOR OBVIOUS DEFECTS, THE DECISION TO FERRY AIRCRAFT TO LAS MAINTENANCE BASE WAS MADE. THE LMLG UPLOCK SWITCH WIRE HARNESS WAS FOUND LOOSE AT ONE END AND WAS REPLACED.