Near collision involving a Cessna Aircraft Company 172N, VH-WSA and Beech Aircraft Corp D95A, VH-CFQ, 4km N Casino NDB, NSW on 1 April 1993

The pilot of VH-WSA was carrying out training at the Casino navaid. The pilot of VH-CFQ reported inbound to Casino, also for training at the navaid. VH-CFQ had arranged a 500 feet vertical separation with the pilot of VH-WSA. However, the pilot of VH-CFQ reported that the radio transmissions from VH-WSA were difficult to read and that he was not aware that VH-WSA also intended training at Casino. When he lost sight of VH-WSA the pilot of VH-CFQ assumed that VH-WSA had departed the area and continued descending. Both pilots next sighted each other when their aircraft passed nose to nose with about 100 metres lateral separation and with VH-CFQ at a slightly lower altitude.