What was found
DURING TAKEOFF ROLL ECAM WARNING AT 90KTS, YELLOW HYD LOW PRESS. GOT ENG PUMP PRESS LIGHT & SPLR FAULTS 5 & 3/2 ON OVERHEAD. ABORTED & FAULTS WENT AWAY. AFTER TRYING TO RECONFIGURE WE GOT YELLOW HYD LOW PRESS AGAIN, INTERMITTENTLY. FOUND YELLOW SYS OVER SERVICED. DRAINED FLUID IAW MANUAL REF 12-12-29-00, RAN ENGINES IAW JRH. ALL FLUID LEVELS & PRESS NORMAL.