A fatal Robinson R44 helicopter accident has prompted the ATSB to recommend safety improvements to helicopter fuel tanks in the United States and Europe.
Four people died in the March 2013 accident at Bulli Tops in New South Wales. The R44 helicopter they were travelling in was engulfed in fire after striking a tree and hitting the ground.
Following this accident, Australia's Civil Aviation Safety Authority, and other international regulators, made it mandatory for R44 helicopter operators to replace the R44's all-aluminium fuel tank with a bladder-type fuel tank.
ATSB Chief Commissioner…