As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED ENGINE NR 2 N1 VIBRATION HEARD/ FELT VIBRATION BEGINNING DESCENT. VIBRATION INDICATOR (N1) AT 10 - 20 PERCENT THROUGHOUT DESCENT- AS HIGH AS 40 - 50 PERCENT ON OCCASION. INSPECTION REVEALED OUTER 1.2500 INCH LENGTH SEGMENT OF LPT3 TURBINE BLADE MISSING. REMOVED AND REPLACED ENGINE ASSEMBLY. REMOVED ENGINE.