As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB, LEFT HYDRAULIC QUANTITY LOW FOLLOWED BY LOSS OF SYSTEM PRESSURE AND LEFT HYDRAULIC PRESSURE ANNUNCIATOR. AIRCRAFT RETURNED TO JFK. ON GROUND, FOUND HYDRAULIC PRESSURE LINE FROM LEFT PRESSURE FILTER MODULE RUPTURED. REPLACED HYDRAULIC LINE AND LEFT ENGINE HYDRAULIC PUMP. OPS AND LEAK CHECKED OK. (M)