As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT SYSTEM HYDRAULIC QTY STARTED TO DROP SLOWLY. TURNED ENGINE DRIVEN PUMP OFF AND QTY STILL DROPPED SLOWLY. QTY STOPPED DROPPING AT 0.12. FOUND ENG DRIVEN HYD PUMP LEAKING AT CASE SPLIT LINE. REPLACED PUMP ASSY. ALSO, REPLACED PRESSURE FILTER AND CASE DRAIN FILTERS. NO EVIDENCE OF METAL CONTAMINATION.