What was found
WHEN SETTING THE PARKING BRAKE THE HYDRAULIC PRESSURE WENT TO ZERO, LOSS OF HYDRAULICS DUE TO A RUPTURED LINE IN THE RIGHT MAIN LANDING GEAR. MAINTENANCE REPLACED A SWIVAL JOINT ASSEMBLY AND THE BRAKE HOSE TO THE NR 4 BRAKE ASSEMBLY.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
WHEN SETTING THE PARKING BRAKE THE HYDRAULIC PRESSURE WENT TO ZERO, LOSS OF HYDRAULICS DUE TO A RUPTURED LINE IN THE RIGHT MAIN LANDING GEAR. MAINTENANCE REPLACED A SWIVAL JOINT ASSEMBLY AND THE BRAKE HOSE TO THE NR 4 BRAKE ASSEMBLY.