What was found
FLT 6323 - IAD-RDU - RETURNED TO IAD AFTER THE FLIGHT CREW EXPERIENCED THE THAT THE LANDING GEAR WOULD NOT RETRACT WHEN THE GEAR HANDLE WAS SELECTED TO THE UP POSITION. THE AIRCRAFT RETURNED TO IAD WHERE THE MAINTENANCE PERSONNEL TROUBLESHOT THE DISCREPANCY AND FOUND THAT THE WEIGHT ON ON WHEEL SWITCH (LT POSITION) WAS OUT OF ADJUSTMENT. THE WOW SWITCH WAS PROPERLY ADJUSTED AND THE SYSTEM WAS FUNCTIONALLY CHECKED. THE AIRCRAFT WAS THEN RELEASED FOR SERVICE. (M)