As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT NR 6341 - IAD-LGA - ABORTED THE TAKEOFF DUE TO THE TAKEOFF CONFIGURATION WARNING SYSTEM ACTIVATING. AIRCRAFT RETURNED TO GATE WITH NO FURTHER INCIDENTS. MX PERFORMED OPS CHECK BUT COULD NOT DUPLICATE DISCREPANCY. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)