Near collision involving a Piper Aircraft Corp PA-32R-301, VH-NIQ and Beech Aircraft Corp 76, VH-WZB, Tailem Bend, SA on 4 March 1994

The pilot of VH-WZB had completed an IFR training session at Tailem Bend and departed for Adelaide, maintaining 4,000 feet and flying in and out of cloud. He was advised by Adelaide Flight Service of opposite direction IFR traffic, VH-NIQ, enroute from Adelaide to Tailem Bend to conduct IFR training, and maintaining 5,000 feet. A short time later an electronic traffic alerting system installed in VH-WZB alerted the pilot of an aircraft approaching head-on at the same level. The instructor descended the aircraft rapidly to 3,500 feet and the traffic, which was identified as VH-NIQ, passed overhead. The Flight Service Officer had overlooked amended details concerning VH-NIQ revising its cruising altitude to 4,000 feet.