As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HYD Y RSVR LO LVL ON ECAM UPON ACFT VISUAL INSPECTION FOUND O RING DAMAGED ON YELLOW HYD ITEM 40. SYSTEM MANIFOLD PRESS LINE R/ R O RING AS REQUIRED REF AMM 29-13-14-000-001-A. RUN BOTH ENG AND PRESSURIZED ALL THREE SYST , NO LEAKS NOTED . ALL IND SHOWED NORMAL . IPC REF 29-13-14-02