As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ECM HAS DETECTED PARAMETERS SHIFT AT BOTH TAKEOFF AND CRUISE. ENGINE REPLACED. SHOP TEARDOWN REVEALED HEAVY HPC BLADE DAMAGE. THE DAMAGE WAS A RESULT OF FAILURE IN A 5TH STAGE DISK KNIFE EDGE. A 5-INCH SECTION OF THE FRONT KNIFE EDGE FRACTURED, CAUSING A 2-INCH SECTION OF THE STAGE-5 BLADE LEADING EDGE TO LIBERATE, AND SUBSEQUENT DOWNSTREAM BLADE DAMAGE.