On September 25, 1954, a 1954 Aoki Aviation C18S crash was involved in an aviation accident near Japan. 6 fatalities were reported.
This incident is catalogued in the Wikidata aviation-safety dataset, which tracks more than three thousand documented aircraft accidents and aviation occurrences spanning the entire history of powered and unpowered flight. Cross-referencing records like this with primary investigative sources helps researchers analyse historical safety trends and identify recurring contributing factors across eras of aviation.