As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT FLIGHT LEVEL 390 FT THE CREW HEARD A LOUD THUMP AND VIBRATION ON THE NR 2 ENGINE. ENGINE WAS SHUT DOWN AND AIRCRAFT LANDED AT DAL WITH NO FURTHER PROBLEMS. AFTER FURTHER INSPECTION IT WAS FOUND THAT THERE WERE SOME TURBINE BLADES MISSING. ENGINE WAS REMOVED AND A LOANER ENGINE WAS INSTALLED. GARRETT IS CURRENTLY IN THE TEAR DOWN MODE OF THE ENGINE AND DO NOT KNOW THE EXACT FAILED PART.