As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TOTAL LOSS OF BLUE HYDRAULIC SYSTEM FLUID. QUANTITY WENT TO ZERO AND PRESSURE INDICATOR WENT TO ZERO WITH ASSORTED LIGHTS. UNABLE TO EXTEND FLAPS. REPAIRED HYDRAULIC LINE ON FLUID RESERVOIR 4TH LINE. REPLACED RIGHT ENGINE HYDRAULIC PUMP AND ALSO REPLACED RIGHT HYDRAULIC PACK HIGH PRESSURE SWITCH. RAN ENGINE HYDRAULIC SYSTEM AND OPS CHECKS GOOD WITH NO LEAKS.