S121-E-06207 (10 July 2006) --- While anchored on the mobile foot restraint on the Canadarm2, astronaut Michael E. Fossum (left), STS-121 mission specialist, removes the trailing umbilical system-reel assembly (TUS-RA) from the S0 truss on the International Space Station during the mission's second session of extravehicular activity (EVA). Astronaut Piers J. Sellers, mission specialist, assisted Fossum by checking the clearance of the TUS-RA as it was lifted from the bay.