As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT ENGINE TORQUE INDICATION LOST ENROUTE, FOLLOWED BY AUTOFEATHER APPROX 15 MINUTES AFTER TORQUE LOSS. CRUISE POWER TORQUE APPROX 86 PERCENT NP WHEN FAILURE OCCURRED. ENGINE REMAINED IN FEATHER WITHOUT SHUTTING DOWN ENGINE MAINTENANCE REMOVED AND REPLACE TORQUE PROBE.