| ISS Expedition 54 | |
| Insignia: | ISS Expedition 54 Patch.svg |
| Insignia Caption: | Expedition 54 mission patch |
| Mission Type: | ISS Expedition |
| Crew Size: | 6[1] |
| Crew Members: | Expedition 53/54: Alexander Misurkin Mark T. Vande Hei Joseph M. Acaba Expedition 54/55: Anton Shkaplerov Scott D. Tingle Norishige Kanai |
| Crew Photo: | Expedition 54 crew portrait.jpg |
| Crew Photo Caption: | (l-r) Acaba, Vande Hei, Misurkin, Shkaplerov, Tingle, and Kanai |
| Space Station: | International Space Station |
| Start Date: | 14 December 2017 UTC[2] |
| End Date: | 27 February 2018 UTC[3] |
| Arrival Craft: | Soyuz MS-06 Soyuz MS-07 |
| Departure Craft: | Soyuz MS-06 Soyuz MS-07 |
| Previous Mission: | Expedition 53 |
| Next Mission: | Expedition 55 |
| Programme: | ISS expeditions |
Expedition 54 was the 54th expedition to the International Space Station, which began upon the departure of Soyuz MS-05 on December 14, 2017 and concluded upon the departure of Soyuz MS-06 on February 27, 2018. Alexander Misurkin, Mark Vande Hei and Joseph Acaba were transferred from Expedition 53, with Alexander Misurkin taking the commander role. Transfer of Command from Expedition 54 to Expedition 55 was done on February 26, 2018. Expedition 54 officially ended on February 27, 2018 23:08 UTC, with the undocking of Soyuz MS-06.
| Position | First Part (December 14, 2017 to December 17, 2017) | Second Part (December 17, 2017 to February 27, 2018) | |
|---|---|---|---|
| Commander |  Alexander Misurkin, RSASecond and last spaceflight | ||
| Flight Engineer 1 |  Mark T. Vande Hei, NASAFirst spaceflight | ||
| Flight Engineer 2 | Joseph M. Acaba, NASA Third spaceflight | ||
| Flight Engineer 3 | Anton Shkaplerov, RSA Third spaceflight | ||
| Flight Engineer 4 | Scott D. Tingle, NASA First spaceflight | ||
| Flight Engineer 5 |  Norishige Kanai, JAXAFirst spaceflight |
| EVA # | Spacewalkers | Start (UTC) | End (UTC) | Duration | Notes | |||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Expedition 54 EVA 1 | January 23, 2018 11:49 | January 23, 2018 19:13 | 7 hours 24 minutes | Replaced Latching End Effector (LEE-B) on Canadarm2, Installed failed LEE on ESP2, Replaced LEE Camera, Replaced EVA Socket. | ||||||||||||||||||||||||
| Expedition 54 EVA 2*||February 2, 2018 15:34|February 2, 2018 23:47|8 hours 13 minutes |Remove and replacement of an electronics box for a high-gain communications antenna on the Zvezda service module. |-|Expedition 54 EVA 3 ||February 16, 2018 12:00|February 16, 2018 17:57|5 hours 57 minutes|Finished removal and replacement of Latching End Effector on POA, Replaced LEE Camera, Installed Ground Strap on Canadarm2, Brought failed LEE inside, Lubricated Canadarm2, Moved Tool Platform on Dextre, Adjusted Struts on Flex Hose Rotary Coupler.|}*denotes spacewalks performed from the Pirs docking compartment in Russian Orlan suits. All other spacewalks were performed from the Quest airlock. Uncrewed spaceflights to the ISSResupply missions that visited the International Space Station during Expedition 54:
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