Multi-purpose Small Payload Rack (MSPR) DC / DC Converter Unit (DCU) Replacement Part 1:  The crew replaced MSPR DCU with and upgraded DCU2. The still functional older unit will be kept onboard as a spare. The MSPR is a multipurpose payload rack system used in the JEM. It has two workspaces and a work table …

Source: ISS Daily Summary Report – 10/23/2018

David Cottle

UBB Owner & Administrator