Astronaut Frank Culbertson trains for the Expedition Three mission

JSC2001-E-12175 (17 April 2001) --- Astronaut Frank L. Culbertson, Jr., Expedition Three mission commander, works with a training version of the Extravehicular Mobility Unit (EMU) in the International Space Station (ISS) Airlock trainer/mockup in the Systems Integration Facility at Johnson Space Center (JSC).