What was found
(CAN) CREW WERE LINED UP FOR TAKEOFF, AS THEY ADVANCED THE SPEED LEVERS THE L/H ENGINE SHUT DOWN. THE AIRCRAFT TAXIED BACK TO THE MAINTENANCE HANGAR ON ONE ENGINE AND MAINTENANCE INVESTIGATION FOUND THE PRIMARY ONLY SOLENOID VALVE ON THE L/H ENGINE HAD FAILED, THE SOLENOID BODY HAD PARTIALLY SEPARATED FROM THE BASE THAT THE FUEL FLOWS THROUGH DUE TO A SHEARED SCREW (2 SCREWS HOLD THE UNIT TOGETHER) THIS IN TURN CAUSED A LARGE FUEL LEAK LIMITING FUEL TO THE ENGINES FUEL NOZZLES. (TC# 20190801009)