(04/21/2000) --- The STS-92 crew pose in front of the Integrated Truss Structure Z1, an element of the International Space Station that will be part of the mission payload. STS-92 is the fifth U.S. flight in the construction of the International Space Station. Standing left to right are Mission Specialists William S. McArthur Jr., Leroy Chiao, and Michael E. Lopez-Alegria; Pilot Pamela A. Melroy; Mission Specialists Peter J.K. Wisoff and Koichi Wakata; and Commander Brian Duffy. Wakata is with the National Space Development Agency of Japan. The Z1 is an early exterior framework to allow the first U.S. solar arrays on a future flight to be temporarily installed on Unity for early power. Another part of the payload is a pressurized mating adapter, PMA-3, to provide a Shuttle docking port for solar array installation on the sixth ISS flight and Lab installation on the seventh ISS flight. Launch of STS-92 is scheduled for Sept. 21, 2000