As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON LANDING, LEFT BRAKE LOCKED-UP. UPON INSPECTION, FOUND PARKING BRAKE LEVER MOVED UP BLOCKING PRESSURE. RELEASED LEVER TO OFF POSITION, BRAKES RETURNED TO NORMAL. SUBMITTER STATED PARKING BRAKE LEVERS WERE NOT USED AND SHOULD HAVE BEEN SAFETIED TO OPEN POSITION OR HOOKED UP FOR USE.