The Japanese Special Investigation Committee, which consists of external lawyers, said:Submarine engines of some models supplied by Kawasaki Heavy Industries for the Japanese Maritime Self-Defense Force are suspected of improper conduct in fuel consumption testing.The Special Commission of Inquiry will continue its investigation and plans to complete its investigation report within this year

Kawasaki Heavy Industries said that as of now, it is believed that the relevant situation will not affect the operation or safety of the Japanese Marine Self-Defense Submarines.The company will fully cooperate with the Special Investigation Committee and restore trust by strengthening the compliance and management system.

Last August, Kawasaki Heavy Industries issued information that after the investigation confirmed that the company's ship engines had improperly manipulated test data, involving the total number of ship engines involving improper behavior of 673 units.