As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAD/ORF - FLT 7481 - DURING TAKEOFF AIRCRAFT ABORTED TAKEOFF DUE TO BOTH IEC FAILURE. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND REMOVED AND REPLACED NR 1 NTS TRANSDUCER, OPS CHECK OK. AIRCRAFT RELEASED AND APPROVED FOR RETURN TO SERVICE. (X)