As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE NR 1 ENGINE EXPERIENCED A TURBINE FAILURE AFTER TAKEOFF FROM IAH. THE AIRCRAFT WAS RETURNED TO IAH. THE NR 1 ENGINE WAS REMOVED AND REPLACED. THE SDR WILL REMAIN OPEN FOR PART INFORMATION PENDING INVESTIGATION. TEARDOWN REVEALED PRIMARY CAUSE OF ENGINE FAILURE WAS DUE TO FAILURE OF A T-3 BLADE.