As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6570 - IAD-MDT - ABORTED TAKEOFF, DUE TO AIRCRAFT AT 70 KNOTS, RIGHT ENGINE TORQUE DROPPED TO 50 PERCENT. ARICRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE SWAPPED BRIDGES ON RIGHT TORQUE SIGNAL CONDITIONER AND RECALIBRATED, OPS CHECK OK. AIRCRAFT WAS RELEASED AND RETURNED TO SERVICE.(M)