As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOSS OF UTILITY HYD SYSTEM DURING FLIGHT. TURNED OFF HYD SUCTION PUMP AND EDP'S. FILLED RESEVOIR AND TURNED SYSTEMS ON AND FLUID LOSS AGAIN. FILLED RESEVOIR AND TURNED NR 2 EDP AND SUCTION BOOST PUMP ON. DROPPED MLG WITH NO FLUID LOSS. REMOVED AND REPLACED NR 2 ENGINE DRIVEN HYDRAULIC PUMP. LP#53459