Good day. We encountered a strange defect on the C130H during a recent ground run, after a left wing refit during a depot maintenance. #1 throttle crept slowly towards T/O after a couple of seconds when all throttles were set at 900degC. A thorough check has been carried out on the airframe to engine cable tension,rigging and signs of binding. The results come up to be good. There wasn\'t any sign of engine vibrations during the ground run. We had also replaced the engine control clutch at the \'horsecollar\', a FCU and a coordinator as a precautionary measure. However, the defect remained the same. Has anyone had any suggestions to this problems? Thanks and appreciate. :S