As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT SYS HYD PRESS DROPPED TO 0 PASSING APPROX 18K QTY ON RT SIDE WENT UP TO 27 QTS. RAN CHECKLIST. WHEN RT ENG PUMP WAS OFF WITH AUX PUMPS ON, PRESS ON RT SIDE WENT FROM 0 TO 700 PSI. THE LT PRESS WENT FROM 3000 TO 2800 PSI. AUX PUMPS AND RT ENG PUMPS NOW IAW CHECKLIST. MTC FOUND CRACKED LINE IN LT W/W, REPLACE LT RESERVOIR AND ENGINE DRIVEN PUMP.