As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE BLUE HYDRAULIC SYSTEM QUANTITY FELL TO ZERO DURING FLIGHT. THE RIGHT NACELLE FLAP ACTUATOR WAS THE CAUSE OF THE HYDRAULIC LEAK. TWO OF THE 4 NAS 1351-3H8P SCREWS THAT SECURE THE SOLENOID VALVE SHEARED ALLOWING THE ACTUATOR TO LEAK PROFUSELY. REPLACED ACTUATOR.