Loop A Ammonia Pump Replaced on ISS In Third EVA

NASA ISS On-Orbit Status 16 August 2010
“Stage EVA-17 by FE-4 Doug Wheelock & FE-2 Tracy Caldwell-Dyson was completed successfully in 7hr 20min, fully accomplishing its objective of installing the spare ETCS (External Thermal Control System) Loop A PM (Pump Module) plus additional tasks. The PM has been checked out and is functioning nominally. Loop A will be fully in service later this week. This was the third contingency spacewalk to replace the Loop A ammonia pump.”