As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THERE WAS AN ABORTED TAKEOFF DUE TO A NR 1 ENGINE AUTO-FEATHER FAILED TO ARM. THE HIGH PRESSURE COMPRESSOR SPEED DROPPED BUT THE PROPELLER DID NOT FEATHER. DURING TROUBLESHOOTING, THE AUTO-FEATHER DID NOT ARM. THE NR 1 ENGINE TORQUE SIGNAL CONDITIONER UNIT WAS REPLACED BEFORE THE AIRCRAFT WAS RETURNED TO SERVICE.