As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING T/O ROLL THE AUTOFEATHER FAILED TO ARM ON THE NR 2 ENGINE. THE T/O WAS ABORTED AND THE ACFT RETURNED TO THE RAMP WHERE TROUBLESHOOTING FOUND A FAULTY TORQUE SIGNAL CONDITIONER UNIT. THE FAULTY UNIT WAS REPLACED AND THE ACFT RETURNED TO SERVICE. RECOMMENDS THE SDR BE CLOSED ON THE BASIS OF THE FOLLOWING INFORMATION.