Russian Federal Space Agency
At the time of its docking, the Expedition 16 crew was aboard the space station. This consisted of Peggy Whitson of NASA who was the station's Commander, along with two Flight Engineers; Yuri Malenchenko of the Russian Federal Space Agency and Garrett Reisman of NASA. They were replaced by the Expedition 17 crew in April and May, who remained aboard the station at the time of the ATV's departure. This crew consisted of station Commander Sergey Volkov of the Russian Federal Space Agency, and Flight Engineers; Oleg Kononenko of the Russian Federal Space Agency and Gregory Chamitoff of NASA.