The pilot was mustering cattle towards a crush. The last animal was reluctant to enter the gate into the crush, and the pilot flew low and behind the animal to encourage it to move. The front of the left landing skid caught under the top wire of the adjacent fence. The aircraft pitched forward and struck the tubular steel crush before coming to rest on its side. Visibility was reduced by dust. The accident occurred during a period of high pilot workload and eleven and one half hours after the pilot had commenced work for the day.
