As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6283 - IAD-HPN - ABORTED TAKEOFF DUE TO LEFT ENGINE WOULD NOT MAKE TORQUE. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND REMOVED AND REPLACED TTL VALVE, OPS CHECK OK. AIRCRAFT WAS RELEASED AND RETURNED TO SERVICE. (M)