Richard Searfoss addresses the crew are participating in Terminal Countdown Demonstration Test TCDT activities.

STS-90 Commander Richard Searfoss addresses the media at KSC's Launch Pad 39B, where the crew are participating in Terminal Countdown Demonstration Test (TCDT) activities. The TCDT is held at KSC prior to each Space Shuttle flight to provide crews with the opportunity to participate in simulated countdown activities. Columbia is targeted for launch of STS-90 on April 16 at 2:19 p.m. EDT and will be the second mission of 1998. The mission is scheduled to last nearly 17 days