View of Yurchikhin working on the Regul-OS System in the SM during Expedition 15

ISS015-E-13632 (25 June 2007) --- Cosmonaut Fyodor N. Yurchikhin, Expedition 15 commander representing Russia's Federal Space Agency, performs in-flight maintenance (IFM) on telemetry hardware in the Zvezda Service Module of the International Space Station.