West Japan Railway Co. said Wednesday that a crack found in the undercarriage of an operating shinkansen bullet train in December is believed to have been caused by improper scraping of the steel component by Kawasaki Heavy Industries Ltd.A probe by the railway operator has found that the steel frame of the undercarriage in question was 4.7 millimeters thick at its thinnest point, undershooting the minimum 7 mm required for the component, JR West President Tatsuo Kijima said at a press conference in Osaka.According to Kawasaki Heavy, which separately held a press conference in Kobe, workers…READ FULL ARTICLE
