Expedition 6 was the sixth expedition to the International Space Station. It was the last three-man crew to reside on the station until the arrival of STS-121. The crew performed two spacewalks in support of maintenance and assembly of the International Space Station.
The Station's sixth crew was launched to the Station aboard Space Shuttle Endeavour STS-113 in November 2002. The mission was expected to be a four-month mission that was to end in March 2003 when Atlantis STS-114 was to fly to the Station with the Expedition 7 crew. The Columbia disaster, which occurred during the mission on 1 Feb. 2003, and resulted in the indefinite suspension of shuttle flights, changed plans and the crew stayed on the station until May 2003. They returned to earth on Soyuz TMA-1 and a reduced Expedition 7 crew with just two members was delivered to the ISS on Soyuz TMA-2. The Space Shuttle was expected to be grounded for up to two years. Ongoing logistical support for the ISS would have to be carried out by Soyuz and Progress flights until the Space Shuttle returned to flight.
Originally scheduled to fly on the Expedition 6 Crew in place of Don Pettit was Donald A. Thomas. A limited number of patches with "Thomas" were issued.
