(11/17/1999) -- At Kennedy Space Center's Shuttle Landing Facility, the cargo of NASA's Super Guppy aircraft begins rolling out onto a payload transporter. The cargo is a P3 port-side truss, a segment of the International Space Station (ISS). The truss is scheduled to be added to the ISS on mission STS-115 in 2002 aboard Space Shuttle Atlantis. The second port truss segment, P3 will be attached to the first port truss segment (P1). The P3 truss will be taken to the Operations and Checkout Building