STS-119 EVA 3 GAT S1 Truss Flex Hose Rotary Coupler (FHRC) P-Clamp Release

s119e007111 (March 23, 2009) --- NASA astronaut Joe Acaba is seen during a spacewalk in March 2009. He was working on the Starboard-1 truss structure while space shuttle Discovery was docked to the station during STS-119.