As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6181 - IAD-BWI - ABORTED TAKEOFF DUE TO LEFT ENGINE WOULD NOT MAKE TAKEOFF TORQUE. AIRCRAFT RETURNED TO GATE WITH NO FURTHER INCIDENTS. MAINTENANCE INSPECTED AND RAN AIRCRAFT BUT COULD NOT DUPLICATE, OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)