A 44-year-old man died in the crash into bushland at Upper Turon on Friday, June 16, 2017.

The plane had taken off from the Red Hill Airstrip about 2pm on the Friday and the alarm was raised when the pilot did not return.

Investigators initiated searches from the ground and air and the wreckage of the plane was found the next morning, with the pilot's body still inside.

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The Australian Transport Safety Bureau launched an inquiry into the crash and its final report is likely to be published in the next month or two.

As part of its investigation, the ATSB conducted an immediate on-site review of the circumstances surrounding the crash, including an examination the aircraft wreckage and recovery of aircraft components, electronic and navigational devices for technical examination.

Investigators also conducted a number of interviews in its attempts to piece together the reasons for the crash.

The bureau's preliminary findings, published on its website in the days after the crash, said it involved an FU24 Stallion aircraft, VH-EUO, at Upper Turon.

"During aerial agricultural operations, the aircraft collided with terrain, the pilot was fatally injured," the preliminary findings stated.

"The ATSB has deployed a team of three investigators to the accident site.

"While on site the team will be examining the site and wreckage and flightpath examination, review the weather, pilot records, and aircraft records, and interviewing any witnesses."

The ATSB report into the crash is now at the "external review" phase, where parties outside of the ATSB with a direct involvement in the incident are given the chance to comment on the final report before it is approved to "ensure their input has been accurately reflected".

It is expected the final report will be made public by the end of June.