Abnormal engine indications involving a The Boeing Company 737-476, VH-TJL, 40km S Brisbane, QLD on 5 January 1995

When climbing through FL120, the crew heard a loud bang followed by severe vibration. The Number 2 engine instruments indicated an EGT of 990 degrees and a vibration indication of 5 (most severe indication). The engine was shut down as per the checklist and the aircraft was returned for a safe landing. The engine was removed and failure of the Number 4 bearing identified as the cause of the malfunction.