What was found
PDIS 749 29-30 3529 18SEP20 MEM OPEN U. DURING TAKEOFF ROLL AT 50KTS, ECAM ALERT "HYD YELLOW PUMP LO PR" AND "YELLOW SYS LO PR" REJECTED TAKEOFF. CLEARING RWY NOTICED HYD YELLOW FLUID LEVEL ABOUT 4 NEEDLE WIDTHS BELOW TOPHAT. DID FLT CONT CHECK AND YELLOW SYS PRESS WOULD DECREASE TO 1000PSI. REMOVED AND REPLACED YELLOW SYS QTY XMITTER IAW A300 29-31-15-04. OPS AND LEAK CHECK STILL NEEDS TO BE PERFORMED. ENT BY: 226153 RPT BY:226153 FACT 19SEP20 07:03 MEM BLEED YELLOW HYD SYS IAW AMM 29-00-00-04. RAN #2 ENG IAW JRH. NO FAULTS, HYD QTY STABLE WHILE RUNNING FLIGHT CONTROLS, NO PRESSURE FAULT NDICATIONS WHILE CYCLING FLIGHT CONTROLES. A/C OK FOR SERVICE AT THIS TIME.