JDS Yūshio (SS-573) was the lead boat of the Yūshio-class submarine.

[1][2] Yūshio was laid down at Mitsubishi Heavy Industries Kobe Shipyard on 14 April 1975 and launched on 19 May 1977.

Around 2:00 am on 12 May 1984, while sailing with a periscope off the south coast of Cape Muroto, she came into contact with the bottom of the Indian-flagged ore carrier Satya Kairash (42,198 tons) sailing to Higashiharima Port in Hyogo Prefecture and had a built-in sonar.

The resulting collision caused damage to the ore carrier's underside tank.

[citation needed] On 1 August 1996, she was reclassified as an auxiliary submarine, her hull number was changed to ATSS-8006, and she became a ship under the direct control of the 1st Submarine Group.