Summary
The aircraft's crew requested a climb to a higher cruising altitude. The Flight Service Officer passed on the request to the responsible Air Traffic Control (ATC) Officer. The correct phraseology and verification procedures were not used between the two, and the aircraft was issued with a climb clearance before the ATC officer had determined that such a clearance was appropriate. The ATC officer subsequently issued a correct clearance and no conflictions resulted.
Occurrence summary
| Investigation number | 199302268 |
|---|---|
| Occurrence date | 29/07/1993 |
| Location | 2315 km north of Perth |
| State | Western Australia |
| Report release date | 19/06/1994 |
| Report status | Final |
| Investigation type | Occurrence Investigation |
| Investigation status | Completed |
| Mode of transport | Aviation |
| Aviation occurrence category | Breakdown of co-ordination |
| Occurrence class | Incident |
Aircraft details
| Manufacturer | The Boeing Company |
|---|---|
| Model | 767-238ER |
| Registration | VH-EAK |
| Sector | Jet |
| Operation type | Air Transport High Capacity |
| Departure point | Jakarta, Indonesia |
| Destination | Sydney NSW |
| Damage | Nil |