|Total EVA time:||17h 47m|
|No.||Date||Together with||Time||Main tasks and notes|
|1||11.08.2007||R. Mastracchio||6h 17m||
Removing locks from the S5 that secure it during launch and lock it in place, relocating a radiator from its launch position to the bottom of the S5 to provide clearance for solar arrays to track the sun.
|2||13.08.2007||R. Mastracchio||6h 28m||
Moving a failed control moment gyroscope (CMG-3) to an unpressurized platform that holds spare parts outside the station called External Stowage Platform2 (ESP-2), a new platform, ESP-3, was added to the station (stored inside ESP-3 is a new gyro that the spacewalkers used to replace the failed one), disconnecting ESP-3 power cables to prepare it for permanent relocation to the station
|3||18.08.2007||C. Anderson||5h 02m||
Installing support equipment on the S1 truss that will allow for an addition to the inspection boom during the STS-123 mission, and installing a system to provide better wireless video coverage during future missions