Complex sentence: The 1958 Nottinghamshire Avro Vulcan crash was an aviation accident which occurred in England on 20 September 1958 during an air show at RAF Syerston, Hucknall, Nottinghamshire when a prototype Avro Vulcan bomber crashed.
Split into simpler sentences: The 1958 Nottinghamshire Avro Vulcan crash was an aviation accident which occurred in England on 20 September 1958. It occurred during an air show at RAF Syerston, Nottinghamshire when a prototype Avro Vulcan bomber crashed.