Installed two WiFi antennas on the Node 3 module in preparation for the arrival of ECOSTRESS on SpaceX CRS-15, removed ammonia jumpers and inspected two working jumpers on the stations truss, replaced camera and lights used to film NASA TV
Transferred a Pump Flow Control Subassembly over to Dextre stowed failed PFCS on ESP-1, Replaced camera and lights used to film NASA TV, Replaced Space to Ground Transceiver Controller, Performed get aheads to Install handrails on Radiator Grapple Bars on S1, Removed thermal blankets and MLI from two Direct Current Switching Units on ESP-2, Prepped the Flex Hose Rotary Coupler on S1 for replacement. Spacewalk suffered a 7-minute delay because of a water leak which formed ice crystals inside the airlock.
Uncrewed spaceflights to the ISS
Resupply missions that visited the International Space Station during Expedition 55: