An idea that presents the theory of aircraft structural inspection as a simple diagram has been awarded the prestigious Whittle Safety Award by the International Federation of Airworthiness.

The award, named after jet engine co-inventor Frank Whittle, is the federation's highest for advancing air safety.

It was handed to Australia-based Civil Aviation Safety Authority's Steve Swift at a recent seminar in Seoul.

Mr Swift came up with a diamond-shaped diagram which judges described as a new and better way of understanding and analysing damage tolerance.

IFA vice-president Ron Yates said the diamond's simplicity and symmetry made it clear, memorable and teachable.