As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB, RT HYDRAULIC PRESSURE DROPPED TO (0) PSI AND QUANTITY GOES UP TO 19 QTY. IAW AMM 29-10-14/201 THE FILTER WERE CHECKED AND BLED AND SYSTEM AND CHECKED HYD LEVEL IAW AMM 12-13-01. THE RT ENGINE DRIVEN HYD PUMP WAS DEFERED TO DMI 849 IAW MEL 29-5 CAT (C), AND DOWN GRADE CAT II, NOT CAT II. FROM DMI 489: RT HYDRAULIC PUMP WAS REPLACED IAW AMM 29-10-05. TEST SATISFACTORY.