Members of the STS-118 crew take a close look at the damaged tile on the underside of Endeavour. From left are Commander Scott Kelly and Mission Specialists Dave Williams, Tracy Caldwell and Rick Mastracchio On the mission, the crew installed a new gyroscope, an external spare parts platform and another truss segment to the expanding station. Endeavour touched down at 12:32:16 Florida time (18:32:16 CEST) on 21 August 2007.