During crew equipment interface test activities at KSC maneuvers the latch on the crew airlock module.

During crew equipment interface test activities at KSC, STS-118 Mission Specialist Dr. Dafydd Williams (right) maneuvers the latch on the crew airlock module. 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. The STS-118 mission will be delivering the third starboard truss segment, the ITS S5, to the International Space Station, as well as the SPACEHAB single cargo module filled with supplies and equipment. Launch aboard Space Shuttle Endeavour is targeted for Aug. 9. Photo credit: NASA/Kim Shiflett