What was found
ON T/O AT APPROX 100 KTS EICAS WARNING L FWD PUMP & LT FWD LOW PRESS LIGHT ILLUM . REJECTED T/O. AFTER REJECT TO, PRESS LIGHT EXTINGUISHED. MAX BRAKE TEMP 5 ACFT HAD DEPARTED UNDER MEL 28-22-01 L/H AFT BOOST PUMP INOP. LT DEFUEL VALVE ACTUATOR REPLACED IAW AMM BOTH LT MAIN FWD & AFT BOOST PUMP PRESSURE SWITCHES REPLACED LT FWD BOOST PUMP REPLACED IAW AMM 28-22-03-404 074. DURING TROUBLESHOOTING - FOUND LT DEFUEL VALVE DRIVING CONTINUOSLY OPEN CHG LT DEFUEL VLV ACTUATOR IAW AMM LT FWD BOOST PUMP REPLACED IAW AMM 28-22-03-404-074 (DUE LOW OUTPUT PRESSURE CHANGED BOTH LT MAIN FWD & AFT BOOST PUMP PRESSURE SW`S LEAK CHK & OPS CHK SERV CARRY OUT VERIFICATION CHK OF LT ENG FUEL FEED SYS DURING GRD RUN.