S115-E-06075 (15 Sept. 2006) --- Astronaut Brent W. Jett, Jr., STS-115 commander, helps astronaut Joseph R. Tanner, mission specialist, with the helmet for his extravehicular mobility unit (EMU) spacesuit as they prepare for the mission's third session of extravehicular activity (EVA) in the Quest Airlock of the International Space Station while the Space Shuttle Atlantis was docked with the station.