(06/05/2002) -- The STS-111 and Expedition 5 crews head for the Astrovan to take them to Launch Pad 39A and the second launch attempt aboard Space Shuttle Endeavour. From left to right, front to back, are Mission Specialists Philippe Perrin (CNES) and Franklin Chang-Diaz; Expedition 5 Commander Valeri Korzun, astronaut Peggy Whitson and cosmonaut Sergei Treschev; Pilot Paul Lockhart and Commander Kenneth Cockrell. This mission marks the 14th Shuttle flight to the Space Station and the third Shuttle mission this year. Mission STS-111 is the 18th flight of Endeavour and the 110th flight overall in NASA's Space Shuttle program. On mission STS-111, astronauts will deliver the Leonardo Multi-Purpose Logistics Module, the Mobile Base System (MBS), and the Expedition Five crew to the Space Station. During the seven days Endeavour will be docked to the Station, three spacewalks will be performed dedicated to installing MBS and the replacement wrist-roll joint on the Station's Canadarm2 robotic arm. Endeavour will also carry the Expedition 5 crew, who will replace Expedition 4 on board the Station. Expedition 4 crew members will return to Earth with the STS-111 crew. Liftoff is scheduled for 5:22 p.m. EDT from Launch Pad 39A