As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT HYD Y RESERVOIR (RSVR) LO LVL LEAKING, IAW AMM 29-13-15-400-001-A THE PACKING 47 OF COUPLING HALF WAS REMOVED AND REPLACED AND THE COUPLING HALF WAS ADJUSTED LEAK TEST WAS PERFORMED SATISFACTORY PTU HYDRAULIC SYSTEMS NORMAL CONDITION