As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMBOUT THRU 17,000 FEET, LEFT HYDRAULIC QUANTITY DROPPED TO ZERO WITH LOSS OF LEFT HYDRAULIC PRESSURE. FOUND THE LEFT ENGINE DRIVEN HYDRAULIC PUMP LEAKING. REPLACED THE LEFT ENGINE DRIVEN HYDRAULIC PUMP IAW DC9 MM 29-10-05-2-0001.