Pilot named and more info here.
https://www.9news.com.au/national/tw...5-68a87bc091f9
The link at post #2 says search commenced at 5.30pm. The 9 news link says the aircraft took off at 11.03 am and crashed 18 minutes later. It was located at about 9 pm that evening.
If the reports are correct it took a very long time to commence a search.