As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6543 - EWR-IAD - ABORTED TAKEOFF DUE TO TAKEOFF CONFIGURATION WARNING. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED SYSTEM, NO DEFECTS NOTED. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)