As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PRIOR TO DEPARTURE LT HYD QTY INDICATED .97 AT APPROX 2110Z STATUS PAGE WAS CHECKED. LT HYD QTY INDICATED .74RF FROM 2110Z TO 2208Z LT HYD QTY DECREASED TO .64RF. BLOCKED IN LT HYD IND. R & R HYD POWER TRANSFER UNIT IAW 29-22-01. SECURITY CHECK GOOD. LEAK CHECK AND OPS CHECK REQUIRED. PES FILL AND BLEED REQUIRED. STEP 9 ON INSTALLATION, PERFORMED PES FILL AND BLEED IAW AMM 29-22-00-872-001. OPS AND LEAK CHECK GOOD.