As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CUSTOMER FOUND METAL IN TAILPIPE. ENGINE WAS SENT TO GARRETT SPI FOR REPAIR. DURING TEAR DOWN, EXTENSIVE DAMAGE WAS NOTED THROUGHOUT THE LPT MODULE. FURTHER TEAR DOWN REVEALED ALL HPT BLADES WERE BROKEN APPROXIMATELY ONE-HALF SPAN. ONE BLADE WAS SEPARATED AT ONE-THIRD SPAN FROM BLADE PLATFORM. SUSPECT HPT BLADE SEPARATION.