As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6480 - GSO-IAD - ABORTED TAKEOFF DUE TO LEFT ENGINE RPM FAILED. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND REMOVED AND REPLACED TACH GENERATOR, OPS CHECK OK. AIRCRAFT WAS RELEASED AND RETURNED TO SERVICE. (M)