As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN BRAKES ARE APPLIED DURING LOW SPEED TAXI, BRAKES WILL RELEASE INTERMITTENTLY. 10-29-07 REPLACED DEFECTIVE BRAKE ISOLATION VALVE WITH UNIT INSPECTED BY EATON FH3R501L. REPLACED DEFECTIVE BRAKE SERVO VAVE WITH UNIT REPAIRED BY APRO XPER689K IN ACCORDANCE WITH F2000 EXEASY M/M 29-004 AND 32-412. OPERATIONAL AND LEAK CHECKS GOOD