Bay 2 at NASA's Kennedy Space Center an overhead crane lifts the crew airlock module off its stand.

In Orbiter Processing Facility bay 2 at NASA's Kennedy Space Center, an overhead crane lifts the crew airlock module off its stand. The airlock is being moved to install it in Endeavour's payload bay. The airlock is located in the middeck. The airlock and airlock hatches permit flight crew members to transfer from the middeck crew compartment into the payload bay for extravehicular activities in their space suits without depressurizing the orbiter crew cabin. The airlock is sized to accommodate two fully suited flight crew members simultaneously. Endeavour is targeted for flight on Aug. 9 on mission STS-118 to the International Space Station. Photo credit: NASA/Jack Pfaller