Investigation number
199102639
Occurrence date
Location
Mount Isa
Report release date
Report status
Final
Investigation type
Occurrence Investigation
Investigation status
Completed
Aviation occurrence category
Breakdown of co-ordination
Occurrence class
Incident
Highest injury level
None

Two aircraft were operating on reciprocal routes between Brisbane and Darwin when the
crew of one aircraft became aware that both aircraft were flying at the same level near Mount
Isa. The crew initiated avoidance action and clearance for operation at a lower level was
given. Each crew saw the other aircraft pass less than 1 min later.

Aircraft Details
Manufacturer
The Boeing Company
Model
737
Registration
VH-CZG
Serial number
23659
Operation type
Air Transport High Capacity
Departure point
Darwin, NT
Destination
Brisbane, QLD
Damage
Nil
Aircraft Details
Manufacturer
The Boeing Company
Model
737
Registration
VH-TJD
Serial number
19254
Operation type
Air Transport High Capacity
Departure point
Brisbane, QLD
Destination
Darwin, NT
Damage
Nil