As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 675 - MISC/DE - LEFT HYDRAULIC SYSTEM QUANTITY DECREASED AFTER TAKEOFF. COMPLIED WITH QRH AND CONTINUED TO DESTINATION. CREW DECLARED EMERGENCY (OPS DECISION) DURING APPROACH. CORRECTIVE ACTION: INSPECTED PTU RELATED HYDRAULIC FILTERS. REPLACED HYDRAULIC LINE IN PYLON AREA.