As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 876 - DURING TAKEOFF CREW ABORTED TAKEOFF. NO REASON WAS SPECIFIED. SAFETY EVENT PERSONNEL SPOKE WITH CAPTAIN AND RECEIVED VERBAL CONFORMATION OF EVENT. CAPTAIN REPORTED THAT THE CONFIG WARNING WENT OFF, TAKE OFF POWER WAS NOT SET AND THAT THE SPEED BRAKE WAS IN THE CORRECT POSITION. WIGGLED SPEED BRAKE HANDLE, SYSTEM FUNCTIONED NORMALLY AFTERWARDS.