As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(B-16709) RT ENGINE HIGH VIBRATION DURING CLIMB AFTER FL210- 4.3 MAX FELT NEAR R4 DOOR AND ADJACENT CABIN, AIR TURN BACK. PERFORM BSI ON NR2 ENGINE FOUND LPT-1, STG-1 BLADE MISSING AND LPT STG-1 TO STG-4 BLADES DAMAGED, R & R NR2 ENGINE.