Summary
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.
Occurrence summary
| Investigation number | 199500026 |
|---|---|
| Occurrence date | 05/01/1995 |
| Location | 40 km south of Brisbane |
| State | Queensland |
| Report release date | 15/02/1995 |
| Report status | Final |
| Investigation type | Occurrence Investigation |
| Investigation status | Completed |
| Mode of transport | Aviation |
| Aviation occurrence category | Abnormal engine indications |
| Occurrence class | Incident |
Aircraft details
| Manufacturer | The Boeing Company |
|---|---|
| Model | 737-476 |
| Registration | VH-TJL |
| Sector | Jet |
| Operation type | Air Transport High Capacity |
| Departure point | Brisbane QLD |
| Destination | Sydney NSW |