Summary
The controller involved was undergoing a check. MAS135 and VH-HYJ were third and fourth in a six aircraft sequence. Both aircraft were inbound to Brisbane from the north-west with VH-HYJ behind MAS135 and operating at a higher speed. As the sequence progressed, the controller was late in detecting the reducing separation between the two aircraft. VH-HYJ was turned away from MAS135 but not sufficiently early to prevent lateral separation reducing to 4NM. At this time, vertical separation was 500 feet.
Occurrence summary
| Investigation number | 199701686 |
|---|---|
| Occurrence date | 25/05/1997 |
| Location | 172 km north-west of Brisbane Aerodrome |
| State | Queensland |
| Report release date | 07/08/1997 |
| Report status | Final |
| Investigation type | Occurrence Investigation |
| Investigation status | Completed |
| Mode of transport | Aviation |
| Aviation occurrence category | Loss of separation |
| Occurrence class | Incident |
Aircraft details
| Manufacturer | Airbus |
|---|---|
| Model | A320-211 |
| Registration | VH-HYJ |
| Sector | Jet |
| Operation type | Air Transport High Capacity |
| Departure point | Cairns QLD |
| Destination | Brisbane QLD |
| Damage | Nil |
Aircraft details
| Manufacturer | Airbus |
|---|---|
| Model | A330-300 |
| Registration | 9M-MKH |
| Sector | Jet |
| Operation type | Air Transport High Capacity |
| Departure point | Kuala Lumpur/Int. Malaysia |
| Destination | Brisbane QLD |
| Damage | Nil |