As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN CRUISE "LEFT" HYDRAULIC QTY DECREASED TO .48. FOLLOWED CHECK LIST AND TURNED OFF BOTH LEFT SYSTEM PUMPS. QTY CONTINUES TO DROP AND IS NOW AT 0.40. NEED TO TOW AIRCRAFT OFF OF RUNWAY IF PTU WILL NOT SUPPLY NOSE WHEEL STEERING. QTY NOW DOWN TO 0.27 AND DROPPING. REPLACED RUDDER RATIO CHANGER ACTUATOR.