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On 23 June 2006 at about 1730 Eastern Standard Time, a Beech Aircraft Corp 58 (Baron) was conducting a global positioning system (GPS) arrival procedure for arrival at Orange Aerodrome, NSW. The aircraft was approaching the aerodrome from the west. At the same time, a SAAB Aircraft AB SF-340B (SAAB) was conducting an Orange runway 29 straight-in area navigation global navigation satellite system (RNAV GNSS) approach. The two aircraft had the same estimated time of arrival at Orange Aerodrome. They were both being operated under the instrument flight rules, and were in instrument meteorological conditions.

At the missed approach point of the GPS arrival procedure, and at an altitude of 4,220 ft, the pilot of the Baron had not become visual with the aerodrome. He commenced the published missed approach procedure and made a transmission on the Orange common traffic advisory frequency (CTAF) to advise local traffic that he was conducting that procedure. That required the pilot to track a bearing of 098 degrees magnetic from the Orange non-directional beacon and to climb the Baron to the minimum sector altitude of 5,200 ft above mean sea level.

The captain of the SAAB advised the pilot of the Baron that, in order to maintain separation, the pilot of the Baron would have to manoeuvre his aircraft. The pilot of the Baron manoeuvred his aircraft accordingly.

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