(04/05/2000) --- STS-101 Mission Specialist Jeffrey Williams arrives at KSC's Shuttle Landing Facility aboard a T-38 jet aircraft flown by STS-101 Pilot Scott Horowitz. They and the rest of the crew are at KSC to take part in Terminal Countdown Demonstration Test (TCDT) activities that include emergency egress training and a dress rehearsal for launch. The other crew members are Commander James Halsell and Mission Specialists Mary Ellen Weber, James Voss, Susan Helms and Yury Usachev. During their mission to the International Space Station, the STS-101 crew will be delivering logistics and supplies, plus preparing the Station for the arrival of the Zvezda Service Module, expected to be launched by Russia in July 2000. Also, the crew will conduct one space walk to perform maintenance on the Space Station. This will be the third assembly flight for the Space Station. STS-101 is scheduled to launch April 24 at 4:15 p.m. from Launch Pad 39A