As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT RETURNED TO DEPARTURE WITH A REPORTED ENGINE ISSUE. PILOT REPORTED BANG ON TAKEOFF. NR 1 ENGINE PARAMETERS DECLINED TO ZERO WITH EGT INCREASING. ENGINE SHUTDOWN. MAINTENANCE FOUND METAL IN TAIL PIPE AND TURBINE DAMAGE. ENGINE CHANGE COMPLETED.