As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER START UP AND ATTEMPTING TO TAXI THE LT AND RT BRAKES WOULD NOT RELEASE PROPERLY AFTER HAVING THE PARKING BRAKE SET. BOTH BRAKE ASSEMBLIES (PN 5006484-3) WERE SENT OUT FOR OVERHAUL. THE BACKING PLATE (PN 5006180) FOR BRAKE ASSY SN APR84-161 WAS FOUND CRACKED AND REQUIRED REPLACEMENT. THE TIME ON THE COMPONENT IS UNKOWN.