As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IFSD/ATB/DE- EXPERIENCED LEFT ENGINE SHUTDOWN/FAILURE. FLIGHT RETURNED TO MSP AND THE CAPTAIN DECLARED AN EMERGENCY WITH ATC. FOUND METAL DEBRIS IN TAIL PIPE. LEFT ENGINE REPLACED PER W/C 7100-4423-LH ON LOG PAGE 1595647. (LOG 8304496 - AIRCRAFT WAS GROUNDED).