As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - INFLIGHT T1166/21 LEFT ENGINE FAILED WITH VERY LOUD BANG THAT WAS FELT AND HEARD IN COCKPIT. ENGINE WAS PREVIOUSLY RUNNING SMOOTHLY AT 1.34. STABILIZED ENGINE PRESSURES RATIO. ENGINE APPEARED TO BE SEIZED. PRELIMINARY INSPECTION REVEALED METAL IN TAILPIPE. REPLACED DAMAGE IN TAILPIPE AREA. REPLACED LEFT ENGINE. SYSTEM GROUND CHECKED NORMAL OPERATION.