The P1 Truss Segment arrives at the Payload Changeout Room in preparation for installation into Endeavour's payload bay.

At Launch Complex 39A, the P1 Truss Segment arrives at the Payload Changeout Room in preparation for installation into Endeavour's payload bay. The P1 truss is the primary payload for Mission STS-113 to the International Space Station. It is the first port truss segment which will be attached to the Station’s central truss segment, S0. Once delivered, the P1 truss will remain stowed until flight 12A.1. The mission will also deliver the Expedition 6 crew to the Station and return Expedition 5 to Earth. Space Shuttle Endeavour is scheduled to launch no earlier than Nov. 10 on the 11-day mission.