What was found
FLIGHT 2245, THE CREW REPORTED THAT THE NR 2 ENGINE HP VIBRATION GOES INTO AMBER WITH N2 ABOVE 70 PERCENT, AND EXTREME FLUCTUATIONS ON ITT INTO THE RED AND EXTREME SHUDDERING FROM THE NR 2 ENGINE. CREW SHUTDOWN NR 2 ENGINE AS A PRECAUTION, AND LANDED WITHOUT INCIDENT. MX INSPECTED THE AIRCRAFT AND REMOVED AND REPLACED THE NR 2 ENGINE, OPERATIONALLY TESTED WITH NO DEFECTS, AND ACFT APPROVED FOR RETURN TO SERVICE.