Following the grounding of large numbers of piston-engine aircraft across eastern Australia in early January 2000 as a consequence of using contaminated aviation gasoline (Avgas), the Australian Transport Safety Bureau initiated a major safety deficiency investigation into the circumstances of the contamination. Guidance for the investigation was subsequently provided in the form of Terms of Reference, which stated that the investigation was being widened to examine the following:
the existing standards for aviation gasoline;
the details of risk analyses undertaken prior to and during the…