As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HYD SYSTEM 3 LO PSI INFLIGHT. SYNOPTIC PAGE SHOWED 0 QUANTITY AND 0 PSI WITH EITHER 3A OR 3B PUMPS RUNNING. HYD LEAK NOTED DURING WALK AROUND. NO OTHER HYD3 CAUTION MESSAGES DISPLAYED. ****AIRCRAFT REMOVED FROM SERVICE*** REF 345081/1, 345081/2, 345081,4, AND 345082/1 FOR REMOVAL AND REPLACEMENT OF HYD PUMPS 3A AND 3B SERFVICNING AND BLLED. AC OK FOR SERVICE