As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENGINE SHUT DOWN IN-FLIGHT. TORQUE WAS ERRATIC FOR 3 SECONDS AND THEN SHUT DOWN BY ITSELF. PROBLEM COULD NOT BE DUPLICATED. ENGINE WAS INSPECTED AND NO DEFECTS NOTED. THE ELECTRONIC CONTROL UNIT WAS REPLACED AS A PRECAUTIONARY MEASURE. PART TOTAL CYCLES, 15,108.