As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT NR 6537 - IAD-RIC - ABORTED TAKEOFF DUE TO TAKEOFF CONFIGURATION WARNING. AIRCRAFT RETURNED TO GATE WITH NO FURTHER INCIDENTS. MAINTENANCE ADJUSTED EMERGENCY BRAKE MICROSWITCH. OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)