As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAKEOFF, COMPLETED TAKEOFF CONFIGURATION TEST PRIOR TO TAKEOFF (WAS NORMAL) GOT AN UNSAFE CONFIGURATION FOR TAKEOFF ECAM WARNING. REJECTED TAKEOFF FOUND PARKING BRAKE LEVER UP ABOUT 1 INCH. COMPLETED CHECKLISTS- NEXT TAKEOFF NORMAL. OPERATED PARKING BRAKE HANDLE AND PERFORMED ADJ/TEST MM32-45-00-5 AND 31-51-00-5-01, OPS CKS NORMAL. NO HISTORY. NOTE CREW COMMENTED THEY HAD JUST STARTED THE TAKEOFF WHEN THE WARNING ILLUMINATED, NO HIGH ENERGY INSP REQUIRED.