As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW OBSERVED THE RT HYD QTY DECREASING EN ROUTE NOTIFIED MCC 1515Z. QTY AT 1.03 DEPARTING ATL DECREASED TO .65 ON ARRIVAL FLL. FOUND RT SYS HYD LINE IN AFT BB RT FWD SIDE PALLET 20. DRIVE BAY-A- UNDER SATCOM E12 RACK AREA PANEL -O-RING FOR CK VLV DAMAGED. REPLACED O-RING, SVCD SYS PRESSURE CK NORMAL.