- P2 Truss -
STS-226 delivered the second port truss segment to the IOSS. TheP2 Truss (Port-2 Truss) will be used to hold external pallets, and serve as a link to the Starboard Radiator, which will be used to help control temperature on the station.
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| Endeavour on the pad at Cape Canaveral | Endeavour lifting off | Endeavour rolled heads-down | SRB separation |
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| Endeavour at moment of no return | Endeavour rolling heads up | STS-227 on orbit | Endeavour approaching the station |
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| Endeavour preparing to dock | STS-227 docked | The P2 Truss grappled by the station arm | The P2 Truss being moved into position |
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| The IOSS with the P2 Truss installed | STS-227 undocking from the station | Endeavour ready for de-orbit burn | Endeavour during re-entry |
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| Endeavour above the cape | Endeavour on final | Wheels down | wheel Stop |
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| The IOSS at the end of the mission |