Technicians in the Payload Changout Room supervise the opening of the payload canister doors for transfer of the P1 truss.

At Launch Complex 39A, technicians in the Payload Changout Room supervise the opening of the payload canister doors for transfer of the P1 truss. 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.