During the mission of the Cortez, Captain Jack Maynard took him out to investigate an area of space. A Shadow Vessel was briefly in the area, and Patrick thought he saw some flickering but thought nothing of it. Maynard was convinced he saw a large ship.
Patrick was on duty when the Cortez was briefly lost in hyperspace just after leaving Babylon 5. He lost the jumpgate signal, but was able to keep the ship from drifting long enough so a Starfury squadron could find them.