As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BRAKES MOMENTARTILY STICK AFTER THE PARKING BRAKE IS RELEASED. REMOVED FROM SERVICE. HOOKED UP AC GPU AND ENERGIZED HYDRAULICS. OPERATED PARK BRAKE SYSTEM REF AMM TASK 32-44-01-710-801. RESULTS GOOD. CONFIRMED NORMAL BRAKE OPERATION VISUALLY FOR EACH BRAKE. NO DEFECTS NOTED. RETURNED TO SERVICE. NO PARTS REPLACED.