As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN PARKING BRAKE WAS SET, WITH BRAKE LIGHT ON AND WHITE PARKING BRAKE LIGHT ON, ACFT ROLLED FWD 1 1/2 FEET. RESET BRAKE AND IT SELF RELEASED 3 TIMES. REMOVED OLD VALVE AND REPLACED WITH NEW SERVICEABLE UNIT REF AMM 32-44-04. OPS CHECKS REF AMM 32-44-00-735-008.