KSC-96EC-0826 - STS-78 crew departs O&C building for launch The STS-78 flight crew is greeted by a crowd of wellwishers as they depart the Operations and Checkout Building and head for the launch pad. Leading the way are .... Awaiting the crew at Launch Pad 39B is the Space Shuttle Columbia, scheduled to lift off on an extended duration flight during a two-and-a-half hour launch window opening at 10:49 a.m. EDT, June 20. 06/20/96