From yahoo news..
Australian aviation pioneer Nancy Bird Walton has died at her Sydney home, aged 93.
Named a Living National Treasure by the National Trust of Australia in 1997, Ms Walton died from natural causes about 2pm (AEDT) on Tuesday at Mosman on Sydney's north shore.
Ms Walton was 17 when she learned to fly in 1933, taught by Charles Kingsford Smith.
Two years later she became the first woman in Australia to obtain her commercial pilot's licence.
Ms Walton went on to pioneer an air ambulance service for outback NSW.
