What was found
DURING CLIMB, FLIGHT CREW NOTED FAN VIBRATION REACHED 3.2. AIRCRAFT RETURNED TO SNN (EINN). UPON ARRIVAL NR 2 ENGINE WAS INSPECTED. FAN INSPECTION FOUND MULTIPLE FAN BLADES AND EXIT GUIDE VANES DAMAGED DUE TO SUSPECTED FOREIGN OBJECT DAMAGE. R/R NR 2 ENG FAN BLADES AS PER MD11 AMM REF 72-31-02 REF NR 003, R/R NR 2 ENG EXIT GUIDE VANES, SHIP SET AS PER MD11 AMM 72-33-01, ACCOMPLISHED ENG RUN AND OPS CHECK ALL NORMAL PER MD11 MM.