What was found
DURING TAKE OFF, REJECTED THE TAKE OFF DUE TO HYD BLUE LOW PRESSURE. IAW TSM 29-12-00-810-804-A, AND AMM 29-12-42 PB 401, THE HY ACCU BLUE WAS REPLACED. THE OPERATIONAL TEST WAS SASTIFACTORY. DID NOT SHOW MESSAGE IN ECAM. THIS AIRCRAFT RETURN TO SERVICE.