As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAD/PIT - FLT 7387 - DURING TAKEOFF, AIRCRAFT ABORTED TAKEOFF DUE TO RT ENGINE NOT MAKING TORQUE. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND SWITCHED RT ENGINE TORQUE BRIDGE FROM NR 1 TO NR 2 AND GROUND RAN AIRCRAFT. OPS CHECK OK. AIRCRAFT RELEASED AND APPROVED FOR RETURN TO SERVICE. (X)