KOROLYOV (outside Moscow)(Sputnik) — The extravehicular activities of Expedition 54 Commander Alexander Misurkin and Flight Engineer Anton Shkaplerov, clad in Orlan spacesuits, mainly involve work to replace an old electronics box for one of the communications antennas outside the Zvezda Service Module with an upgraded unit.
It is the fourth career spacewalk for Misurkin and the second — for Shkalperov. The spacewalk is estimated to last for seven hours.