What was found
AT CRUISE, HYD 3 LO QTY MESSAGE ON EICAS. HYD SYNOPTIC PAGE INDICATED ~16% QTY, SLOWLY DEPLETING. INDICATION REACHED 0% IN ~15 MIN. SHORTLY AFTER LANDING. ASSOCIATED HYD 3 LO PRESS MESSAGE ON EICAS, COMPLETED HYD 3 LO PRESS CHECKLIST AND QTY RETURNED TO ~12%. REMOVED FROM SERVICE. FOUND #3 HYDRAULIC SYSTEM FLOW LIMITER VALVE TO BE LEAKING. REMOVED AND REPLACED FLOW LIMITER VALVE REF E175 AMM 29-12-19-000/400-801-A. SERVICED #3 HYDRAULIC SYSTEM REF E175 AMM 12-12-01-600-802-A AND BLED #3 HYDRAULIC SYSTEM REF E175 AMM 29-10-00-870-803-A. LEAK CHECK GOOD. NO FURTHER DEFECTS NOTED. RETURNED TO SERVICE.