As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER RELEASING PARKING BRAKE HANDLE, LOW BRAKE PRESSURE AND ANTI SKID INOPERATIVE LIGHTS CAME ON FLASHING. RAN EMERGENCY CHECKLIST AND SHUTDOWN ENGINES. EMERGENCY BRAKE HANDLE WAS NOT PULLED. R & R THE HYD PACK FOR BRAKE SYS AS WELL AS BLEED BUTTON VALVE FOR BRAKE ACCUMULATOR IAW MM 32-42-06. OPS & LEAK CHECKED GOOD.