What happened
Following departure from Thomson Bay on Rottnest Island, a single-engine seaplane entered a left bank that caused the tip of the left wing to make contact with the water. This impact initiated a water loop, which forced the aircraft into a vertical descent into the sea. The aircraft remained in a vertical position while floating on the surface following the impact.
During the accident, the aircraft's occupants experienced varying levels of harm. The incident resulted in three fatalities, involving the pilot and two passengers who were identified as Danish and Swiss nationals. Among the remaining occupants, three passengers sustained serious injuries, while one individual escaped the crash without injury.