The aircraft departed Wentworth Airfield in south western New South Wales mid-morning on Monday 28 May 2012. The aircraft was not reported overdue to Police until mid-afternoon on Tuesday.
The aircraft has not been heard from since and significant concerns are held for the safety of its pilot.
The aircraft is believed to have been conducting a local flight. Search aircraft and a rescue helicopter with thermal imaging and night vision equipment have undertaken an initial search of the area.
A widespread search involving multiple fixed wing aircraft and helicopters will commence from first light on Wednesday morning.
Persons with information about a light aircraft operating within 100km of Mildura between 9:30AM and 1:30PM on Monday 28 May, are requested to contact the Rescue Coordination Centre on 1800 815 257.