What was found
AT APPROX 60 KTS ROLL GOT NR 2 GREEN HYD PUMP LOW PSI. SAME LIGHT CAME ON AFTER START OF NR 1 ENGINE, BUT WENT OUT ON ITS OWN AFTER A MINUTE. REJECTED TAKE OFF. CONFERED WITH MAINT, DID A HIGH POWER ENGINE RUN WITH NO PROBLEM NOTED. TAXI BACK FOR TAKEOFF, BUT GOT NR 1 GREEN HYD PUMP LOW PSI AT AROUND 60 KNOTS, REJECTED AGAIN. IT IS POSSIBLE THAT IT WAS THE NR 1 PUMP BOTH TIMES. HOWEVER, WE WERE FAIRLY SURE IT WAS THE NR 2 PUMP ON THE FIRST TIME. MAINTENANCE REPLACED BOTH GREEN SYS EDP`S AND FILTERS. MAINTENANCE ALSO PREFORMED GREEN SYS BLEED WITH FULL GEAR SWING. ALL LEAK, OPERATIONS, FLUID LEVELS & AIR PRESSURES CHECK GOOD. A/C RETURNED TO SERVICE.