As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT EN73 - PHF-ORF - DURING CLIMB-OUT, NR 1 ENGINE TORQUE ROLLED BACK FROM 90-30 PERCENT, ENGINE AUTOFEATHERED AND THE CREW SHUT ENGINE DOWN. THE AIRCRAFT CONTINUED TO ORF AND LANDED WITHOUT INCIDENT. REMOVED AND REPLACED THE NR 1 ENGINE TORQUE SENSOR AND THE TORQUE SIGNAL CONDITIONING UNIT. REFERENCE HNAA9791132.