As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 2 ENGINE EXPERIENCED EXCESSIVE VIBRATIONS. SUBJECT ENGINE EXPERIENCED HIGH VIBRATION. PIECES OF METAL WERE FOUND IN TAILPIPE AND ENGINE WAS REPLACED. THE ENGINE WAS FOUND TO HAVE EXPERENCED AN LPT FAILURE. THE ROOT CAUSE TO BE SULFIDATION OF THE 5TH STG VANES WITHIN THE LPT MODULE.