Summary
Shortly after take-off an EICAS message 'flap Disagree' was indicated. The crew took appropriate action and the flight was continued.
During climb out at FL205 a loud bang was heard accompanied by fluctuating right engine instrument indications and a yaw effect. The right engine was shut down and the aircraft returned to land at Melbourne.
For the flap problem the rectification consisted of replacement of the trailing edge flap bypass valve.
For the engine malfunction the engine was changed.
Significant Factors
The following factors were considered relevant to the development of the incident:
1 Defective trailing edge bypass valve.
2 Right engine malfunction, reason undetermined.
Occurrence summary
| Investigation number | 199500185 |
|---|---|
| Occurrence date | 25/01/1995 |
| Location | 90 km north-east of Melbourne |
| State | Victoria |
| Report release date | 16/05/1995 |
| 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 | 767-238ER |
| Registration | VH-EAO |
| Sector | Jet |
| Operation type | Air Transport High Capacity |
| Departure point | Melbourne VIC |
| Destination | Sydney NSW |
| Damage | Nil |