As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER THE TOE AND PARKING BRAKES ARE RELEASED IT TAKES APPROX 3 SEC FOR THE BRAKES TO RELEASE AND LET THE ACFT MOVE. PERFRORMED OPS CK OF THE PARKING BRAKES AND MAIN BRAKE SYS . BRAKES RELEASED IMMEDIATLY AFTER BRAKES WERE RELEASED IN COCKPIT AND ALL WHEELS ROTATED EASILY WITH HAND PRESSURE. PERFORMED GVI OF MAIN BRAKE ASSYS. NO PROBLEMS NOTED AT THIS TIME. RETURNED TO SERVICE. NO PARTS REPLACED.