As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED DURING GEAR EXTENSION, HYDRAULIC QUANTITY AND MAIN ACCUMULATOR PRESSURE DROPPED TO ZERO. MAINTENANCE INSPECTED AND FOUND HYDRAULIC LINE FROM THE PUMP TO THE FILTER LEAKING. THE LINE WAS REPLACED AND A FUNCTIONAL CHECK OF THE SYSTEM PERFORMED WITH ALL INDICATIONS NORMAL AND NO LEAKS.