The Spacelab long transfer tunnel is removed by KSC paylaod processing employees in Orbiter Processing Facility 1.

The Spacelab long transfer tunnel that leads from the Space Shuttle Orbiter Columbia’s crew airlock to the Microgravity Science Laboratory-1 (MSL-1) Spacelab module in the spaceplane’s payload bay is removed by KSC paylaod processing employees in Orbiter Processing Facility 1. The tunnel was taken out to allow better access to the MSL-1 module during reservicing operations to prepare it for its reflight as MSL-1R. That mission is now scheduled to lift off July 1. This was the first time that this type of payload was reserviced without removing it from the payload bay. This new procedure pioneers processing efforts for quick relaunch turnaround times for future payloads. The Spacelab module was scheduled to fly again with the full complement of STS-83 experiments after that mission was cut short due to a faulty fuel cell. During the scheduled 16-day reflight, the experiments will be used to test some of the hardware, facilities and procedures that are planned for use on the International Space Station while the flight crew conducts combustion, protein crystal growth and materials processing experiments