(10/10/2000) --- STS-92 Pilot Pamela Ann Melroy exits the Astrovan on its return to the Operations and Checkout Building. Behind her is Mission Specialist Koichi Wakata of Japan. The scheduled launch to the International Space Station (ISS) was scrubbed about 90 minutes before liftoff. The mission will be the fifth flight for the construction of the ISS. The payload includes the Integrated Truss Structure Z-1 and the third Pressurized Mating Adapter. During the 11-day mission, four extravehicular activities (EVAs), or spacewalks, are planned. The Z-1 truss is the first of 10 that will become the backbone of the International Space Station, eventually stretching the length of a football field. PMA-3 will provide a Shuttle docking port for solar array installation on the sixth ISS flight and Lab installation on the seventh ISS flight. The launch has been rescheduled for liftoff Oct. 11 at 7:17 p.m