As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HYDRAULIC RESERVOIR LOW LEVEL ECAM MESSAGE WAS PRESENTED DURING DESCEND, ABNORMAL PROCEDURE WAS PERFORMED IAW AMM 29-13-14-400-001. CHECK AND FOUND HYDRAULIC LEAK IN LINE C, ITEM 48 AND 472 HP MANIFOLD OF THE YELLOW HYDRAULIC SYSTEM. THE PACKINGS AND SEAL WERE REPLACED. THE OPS TEST OF THE VALVE WAS PERFORMED AND DIDN'T FIND LEAK IAW AMM 29-13-00-710 -002M. OPS TEST OF THE YELLOW HYDRAULIC SYSTEM, PERFORMED TEST SATISFACTORY.