What was found
FLT 6284 - HPN-IAD - ABORTED THE TAKEOFF DUE TO THE RIGHT ENGINE NOT MAKING TAKEOFF TORQUE. AIRCRAFT RETURNED TO GATE WITH NO FURTHER INCIDENTS. MAINTENANCE REPLACED THE RT FCU. AIRCRAFT WAS THEN RELEASED FOR A FERRY FLIGHT TO IAD DUE TO THE RIGHT ENGINE VERY SLOW TO MAKE TAKEOFF TORQUE. AIRCRAFT LANDED IAD WITH NO FURTHER INCIDENTS. MAINTENANCE ADJUSTED SCREW 'X'. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (W)