As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAD/SYR - FLT 6379 - DURING TAKEOFF AT 1825 HOURS ON 3-14-97, ABORTED TAKEOFF DUE TO CAPTAIN'S ASI LAGS APPROX 40 KTS BEHIND F/O'S. AIRCRAFT LANDED AT IAD AND WENT TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSP AND REMOVED AND REPLACED CAPTAIN'S ASI, OPS CHECK OK. AIRCRAFT WAS RELEASED AND RETURNED TO SERVICE. (X)