As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT THE START OF TAKEOFF ROLL AT DCA THE CREW REPORTED A TAKEOFF CONFIG WARNING AND THE GND SPLR DEPLOY CAUTION MESSAGE ILLUMINATED. THE CREW OF FLIGHT 2428 ABORTED THE TAKEOFF AND RETURNED TO THE GATE. CONTRACT MAINTENANCE PERFORMED TAKEOFF CONFIG OPERATIONAL CHECKS IAW CRJ 200 FIM 22-12-00. NO DEFECTS WERE NOTED. THE AIRCRAFT WAS THEN RELEASED FOR SERVICE.