As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF ROLL CONFIG AILERON WARNING MESSAGES ILLUMINATED AND SOUNDED. THE CREW PERFORMED A REJECTED TAKEOFF. MAINTENANCE PERFORMED AN OPERATIONAL CHECK OF THE AILERON TRIM SYSTEM IAW CRJ200 AMM 27-11-00-710-801 AND A REJECTED TAKEOFF INSPECTION IAW CRJ200 AMM 05-51-27. NO DISCREPANCIES WERE FOUND. AN OPERATIONAL CHECK FLIGHT WAS PERFORMED WITH NO DEFECTS NOTED. THE AIRCRAFT WAS RELEASED FOR SERVICE.