Wilson, 34, was one of many stars of actuality collection Outback Wrangler.
Police introduced as we speak a 44-year-old man had been arrested and was aiding police with their inquiries. He has not been charged.
The crash came about in Arnhem Land, about 500km east of Darwin, in late February.
The helicopter was a part of an expedition to gather crocodile eggs from native habitat.
Wilson, who had been slung beneath the helicopter, was discovered lifeless about 40m from the crash website.
A preliminary report from the Australian Transport Security Bureau discovered Wilson was dangling about 30m beneath the R44 Raven II chopper when it struck timber shortly after take-off in Noonamah, West Arnhem Land.
The sling line attachment rings weren’t linked to the helicopter cargo hook, the report mentioned.
The helicopter’s predominant rotor blade had struck and reduce by the trunk of at the least one tree.
“Preliminary evaluation indicated the engine had stopped previous to the helicopter colliding with the bottom,” the report mentioned.