Circumstances and Pathological Findings in Civilian Helicopter-Related Fatalities.

Abstract: Helicopters are used worldwide in a range of commercial and private industries and are particularly useful in northern Australia due to the sparse population scattered over large distances with remote regions difficult to access by any other means of transport. Nine civilian helicopter-related fatalities were reported to the Northern Territory coroner between January 2004 and December 2023. The victims were all male (age range, 34-74 years; mean, 52 years). All fatal crashes occurred in remote areas, the majority on cattle stations. Pilots were the sole occupants in 5/9 incidents; in 4 incidents, there were injured survivors. All fatal incidents involved Robinson piston engine helicopters (Robinson R44 models in 2 incidents and Robinson R22 models in the remaining 7). Scene investigations, postmortem examinations, and ancillary investigations were frequently hampered by decomposition of the remains, resulting from difficult search operations and delayed location, retrieval, and storage. Head injuries were present in all cases with chest and spinal injuries in more than half. Integrated assessment of injuries with toxicological and aviation investigations facilitated understanding of the crash dynamics.