As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6318 - ROA-IAD - DURING TAKEOFF, AIRCRAFT ABORTED TAKEOFF DUE TO TOCAS WARNING SOUNDED ON TAKEOFF ROLL. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND RESET AND VERIFIED ALL TOCAS SYSTEMS. OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)