As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PARKING BRAKE NOT RELEASED CAUTION MESSAGE. MESSAGE CONTINUED AFTER PERFORMING QRH AND REMAINED UNTIL LANDING. LANDING WAS UNEVENTFUL, BRAKES WERE NORMAL. UPON EXITING RUNWAY MESSAGE CHANGED TO EMER BRAKE FAULT STATUS, WHICH WENT AWAY ONCE PARKING BRAKE SET. (FLT 4643) 10/22/2018 WORK IN PROGRESS. REMOVED AND REPLACED THE HYDRAULIC SYSTEM NR 1 EMERGENCY PARKING BRAKE PRESSURE SWITCH IAW AMM. PARKING BRAKE SYSTEM OPS CHECK AND LEAK CHECK GOOD.