As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REJECTED TAKE-OFF, APPROXIMATELY 20KTS, HAD TAKE-OFF CONFIGURATION EICAS WARNING FOR PARKING BRAKE. PARKING BRAKE WAS NOT SET AND HAD BEEN RELEASED SINCE ENGINE START. SWITCH REPLACED IAW MM 32-44-08-2. TAKE OFF CONFIGURATION WARNING SIGNAL TEST CARRIED OUT IAW MM 31-51-00-5.