As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ECAM CAUTION MESSAGE - Y RSVR LO LVL MESSAGE INOP - HYD LEAK APPEARS TO BE AT THE PTU MANIFOLD. NEED MORE TIME TO FOUND 2WAY HYD VALVE DRUM SEAL ITEM 100 IPC 29-13-15-02A LEAKING TROUBLESHOOT. AND O-RING 40 FOR CHECK VALVE 10 . REPLACED THE O-RINGS AND BONNETS ON THE PTU SOLENOID VALVE REF AMM 29-23-51-400-002-A AND LWR CK VALVE O-RING REF IPC29-13-15-02A ITM 40. ADD EMP:U384621