The cause of the accident was investigated by the Aircraft and Railway Accidents Investigation Commission of Japan.
The agency began on October 1, 2008 as a merger between the Japan Marine Accident Inquiry Agency (JMAIA) and the Aircraft and Railway Accidents Investigation Commission (ARAIC).
CSI: Crime Scene Investigation | Federal Bureau of Investigation | Federal Communications Commission | Canadian Pacific Railway | European Commission | Great Western Railway | aircraft | Royal Commission | Shanghai Railway Bureau | Canadian National Railway | Midland Railway | Grand Trunk Railway | London and North Western Railway | Northern Pacific Railway | London, Midland and Scottish Railway | Great Central Railway | Canadian Radio-television and Telecommunications Commission | Fighter aircraft | aircraft carrier | Riccarton Junction railway station | Border Union Railway | Border Counties Railway | London King's Cross railway station | Great Eastern Railway | Federal Trade Commission | Southern Railway | Homebuilt aircraft | BNSF Railway | London and North Eastern Railway | Electoral and Administrative Review Commission |