As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
YELLOW HYD ECAM MSG LOW QTY. REPLACED BAD O RING ON BOTTOM OF YELLOW SYS FILTER MODULE ASSEMBLY, NR 2 ENG DRIVEN PUMP & CASE DRAIN FILTER. ALSO REPLACED REF ITEM 4192001 CHECKED ASSOCIATED FILTERS FOR METAL DEBRIS, NONE FOUND. SYS OPERATIONS CHECKED & LEAK CHECKED GOOD.