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KENNEDY SPACE CENTER, Fla. -- The STS-118 crew arrives on Launch Pad 39A for a media interview before the crew's morning training activities in the terminal countdown demonstration test, or TCDT. From left are Mission Specialists Dave Williams and Rick Mastracchio, Pilot Charlie Hobaugh and Mission Specialist Alvin Drew. Williams represents the Canadian Space Agency. TCDTactivities include M-113 training, payload familiarization, the emergency egress training at the pad and a simulated launch countdown. The mission is the 22nd flight to the International Space Station and Space Shuttle Endeavour will carry a payload including the S5 truss, a SPACEHAB module and external stowage platform 3. STS-118 is targeted for launch on Aug. 7. NASA/Ken Thornsley