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Robert Louis Behnken

 Total EVAs:  10
 Total EVA time:  61h 10m

No. Date Together with Time Main tasks and notes
 1  17.03.2008  R. Linnehan  6h 53m
Completing Dextre assembly by installing a tool platform and tool holster assembly.
 2  20.03.2008  M. Foreman  6h 24m
Evaluating the Shuttle Tile Ablator-54. The Tile Repair Ablator Dispenser, or T-RAD. They used TRAD to mix and squirt out the STA-54 material into holes in several demonstration tiles.
 3  22.03.2008  M. Foreman  6h 02m
Moving the Orbiter Boom Sensor System to a temporary location on the station's main truss. They also installed a new trundle bearing assembly in the starboard Solar Alpha Rotary Joint.
 4  12.02.2010  N. Patrick  6h 32m
The spacewalkers removed and stored a spare parts platform from the Special Purpose Dexterous Manipulator, or Dextre. Finally, they installed four electronics systems cables between Unity and Tranquility to bring the new node to life.
 5  14.02.2010  N. Patrick  5h 54m
Installing ammonia plumbing connectors between Unity and Tranquility and covered them with thermal insulation.
 6  17.02.2010  N. Patrick  5h 48m
Turning on the ammonia cooling lines between Unity and Tranquility, installing heater and data cables on Tranquility, removing insulation and launching locks from the newly installed Cupola, and installed handrails on the outside of Tranquility.
 7  26.06.2020  C. Cassidy  6h 07m
It was the first in a series of spacewalks dedicated to replacing batteries on the far end of the station's starboard truss. The existing nickel-hydrogen batteries were upgraded with newer, more powerful lithium-ion batteries.
 8  01.07.2020  C. Cassidy  6h 01m
The duo continued to replace nickel-hydrogen batteries with more powerful lithium-ion batteries (working site: S6 Channel 1B battery R&R A-F). In addition they routed communication cables.
 9  16.07.2020  C. Cassidy  6h 00m
The astronauts continued to replace nickel-hydrogen batteries with more powerful lithium-ion batteries (working site: S6 Channel 3B battery R&R A-F). They removed all six older nickel-hydrogen batteries for the truss' power system and installed three new lithium-ion batteries.
 10  21.07.2020  C. Cassidy  5h 29m
The astronaut duo worked on removing two lifting fixtures, prepared the outside of the Tranquility module for the arrival later this year of the Nanoracks commercial airlock, routed ethernet cables.