As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INFLIGHT ZRH TO JFK. LEFT HYDRAULIC SYSTEM PRESSURE EICAS MESSAGE ILLUMINATED WITH COMPLETE LOSS OF HYDRAULIC FLUID. LANDED LHR WITHOUT INCIDENT. REPLACED FLEX HYDRAULIC HOSE TO RUDDER RATIO CHANGER. INSPECTED AND REPLACED CASE DRAIN FILTERS FOR BOTH THE EDP AND ELEC HYD PUMP, ALL OK. REPLACED HYD LINE SECURING CLIPS FOUND DAMAGED PER IPC 27-21-13-05 ITEMS 10, 15, 20, 25.