As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TURBINE ROTOR FRACTURED INTO TWO LARGE PIECES. OPERATOR REPORTED THAT ONE PORTION OF THE TURBINE ROTOR EXITED THE TAILPIPE. VISUAL AND SEM ANALYSIS INDICATES A CASTING FLAW CONTAINING HAFNIUM AND MAGNESIUM (REF SAL ENGINE REPORT ER-400-01-05).