Specialist investigators are examining the wreckage of two helicopters that collided in mid-air on the Gold Coast to determine how the tragedy that killed four people unfolded.
The two aircraft, operated by Sea World Helicopters, were conducting joy flights over the Broadwater near the theme park on the New Year's Day public holiday when they crashed into each other.
Australian Transport Safety Bureau (ATSB) personnel are now sifting through the wreckage, analysing footage of the collision and interviewing witnesses and operators, to determine what led to the crash.
