As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) HYDRAULIC NR 1 LOW PRESSURE AND QUANTITY "0". HYDRAULIC PUMP RAN DRY FOR 3 MIN. HYDRAULIC RETURN LINE FOR PRESSURE MANIFOLD FOUND LEAKING. NR 1 ENGINE HYDRAULIC PUMP CHANGED AS PER 29-11-01-400-801, HYDRAULIC LINE REPLACED PER STANDARD PRACTICES 20-22-01, ALSO CARRIED OUT MM 05-51-33-210-801 PAGE 601-603.