As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HYDRAULIC SYSTEM 1 LOW QUANTITY IN AIR. AIRCRAFT RETURNED TO RDU. FOUND SYSTEM NR 1 ENGINE NR 2 HYDRAULIC PUMP LEAKING AT OUTPUT LINE. QUICK DISCONNECT. REPLACED O-RING AND OPS CHECKED NR 1 SYSTEM HYDRAULIC PUMPS FOR ENGINE NR 1 AND NR 2. NO LEAKS FOUND IAW MM 29-11-01.