As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON START OF T/O ROLL, RECEIVED ECAM FOR BLUE RSVR LO LEVEL, BLUE RSVR INDICATES EMPTY. TURNED OFF BLUE HYD ENG PUMP APPROX, 2 MINUTES AFTER ECAM ALERT. T/S AND FOUND ACTUALLEY BLUE RSVR HYD QTY INDICATED 1.5 G/L AND BLUE HYD MANIFOLD PRIORITY VALVE BROKEN. R & R PRIORITY VALVE AND ENG RUN AND PRESSURE & LEAK CHECKED NORMAL IAW MM 29-12-12-4 AND 29-00-00-3 AND 29-23-21-3. JRH CHAP 5 PARTS LOAN. ACFT OK FOR SERVICE. INSTALL BORROWED PART AND REMOVE PART.