What was found
RIGHT HYD QTY EICAS. PER NON NORMAL TURNED OFF RT ENGINE AND ELECTRIC PUMP. FLUID QTY LOSS STOPPED AT .44 LEAK CHECK CARRIED OUT. LEAKAGE FOUND FROM ONE OF THE DPI ON FILTER MODULE AND COMPONENTS FOR THE PRESSURE AND CASE DRAIN OF THE ENGINE-DRIVEN PUMP (EDP) IN THE RT SYS. DPI REMOVED AND INSPECTION CARRIED OUT, FOUND PACKING DETERIORATED, REFER IPC 29-11-17-04 ITEM 265 FOR REFERENCE. HYD FILTERS ON R SYSTEM EDP MODULE REMOVED AND INSPECTED WITH NO CONTAMINATION FOUND. HYD FILTERS AND DPI ON R SYS EDP MODULE REPLACED IAW AMM 29-11-17/401. SUBSEQUENT LEAK CHECK FOUND NIL FURTHER DEFECT. HYD QUANT STAYED AT STABLE LEVEL WITH EDP ON OR ACMP ON. R HYD SYSTEM SERVICING CARRIED OUT IAW AMM 12-12-01-613-059.