Ian Cook and Quoc Huong Vu died when Mr Cook’s AirBorne Edge trike crashed into the ground near Yarrawonga Aerodrome on March 13, 2016.

Mr Cook had volunteered to fly Mr Vu so he could film contestants involved in the Amazing Race Vietnam television show.

Both were killed on impact with the ground only a few minutes into the flight.

Coroner Audrey Jamieson released her findings into the crash on Tuesday, and found “pilot error directly contributed to the incident”.

“The weight of evidence supports finding that environmental factors contributed to the cause of the incident, to the extent that the presence of convective turbulence adversely influenced Ian Cook’s ability to control his aircraft at a time where I find that it was likely he was flying too low, in the presence of these environmental factors,” Ms Jamieson said.

“And I further find that it is also likely that Ian Cook failed to maintain sufficient speed when attempting to land his aircraft, and that this contributing factor is the most likely cause of the collision.”

Witnesses during an inquest suggested weight shift microlight aircraft were over-represented in fatal crashes.

The coroner’s prevention unit conducted a national search for fatal crashes involving the aircraft.  

It found there had been 26 fatal collisions, with 76.9 per cent of those involving AirBorne branded aircrafts, since 2000.

The Hang Gliding Federation of Australia and Recreation Aviation Australia did not raise concerns about the safety of such aircraft, or the AirBorne brand, but supported more pilot training.

Ms Jamieson on Tuesday recommended the Australian Transport Safety Bureau investigate whether the type of microlight trikes involved in the crash were over-represented in such incidents when compared with other recreational aircraft.

She recommended the results be sent to the Civil Aviation Safety Authority to consider possible stronger training requirements. 

Ms Jamieson also recommended more resources be given to the Australian Transport Safety Bureau to investigate crashes.