As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PARKING BRAKE NOT RELEASED MESSAGE ILLUMINATED. QRH COMPLETED STAYED ILLUMINATED. DECLARED EMERGENCY AND BRACED FOR LANDING. PERFORMED FIM TASK 32-41-00-810-852-A. R & R DUAL EMERGENCY PARK BRAKE VALVE IAW AMM 32-44-01. ALL OPS AND LEAK CHECKED OK.