What was found
EICAS - L HYD ENG PUMP- WHEN LEFT ELEC PUMP IS TURNED OFF THE LEFT HYD SYSTEM LOSES PRESSURE. RUDDER RATIO EICAS MSG AFTER ABOUT 15 MINUTES. LT HYD SYSTEM OVERHEAT. SHUT DOWN LEFT ENGINE. LEFT ENG EMERGENCY HANDLE PULLED/ENG HYD PUMP SWITCH OFF/CTR RESERVOIR HEAD PRESS BLEED HYD SERVICE DOOR OPEN. PRESS FILTER AND CASE DRAIN REMOVED FOR INSPECTION LT ENG PUMP REMOVED. CHECKED MAIN PRESSURE FILTER FOR METAL, NO METAL FOUND. REPLACED FILTER AND SAFETIED. REPLACED NR 1 EDP PRESSURE AND CASE DRAIN FILTERS AFTER FLUSHING SYSTEM.