As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ATB - HYD YELLOW SYS LOW QUANTITY/PRESSURE. ECAM SHOWS FLUID STILL PRESENT IN YELLOW SYSTEM. O-RING ON YELLOW HP MANIFOLD IN RIGHT WHEEL WELL LEAKING. REMOVED AND REPLACED O-RING ON YELLOW HP MANIFOLD PER AMM 29-13-53-400-803-A. OPS/LEAK CK GOOD OK FOR SVC.