Long-duration mission to the International Space Station
Expedition 71 was the 71st long-duration expedition to the International Space Station. The expedition began with the departure of Soyuz MS-24 on 6 April 2024 with Russian cosmonaut Oleg Kononenko continuing his ISS command from Expedition 70. It ended with his departure on Soyuz MS-25 with crewmates from MS-24 and MS-25 on 23 September 2024.
Background, Crew, and Events.
Initially, the expedition consisted of Kononenko, his Russian Soyuz MS-24 crewmate Nikolai Chub (both on a year long ISS mission since 15 September 2023), and his American Soyuz MS-25 crewmate, Tracy Caldwell-Dyson, who launched on 23 March 2024, as well as SpaceX Crew-8 crewmates, American astronauts Matthew Dominick, Michael Barratt, and Jeanette Epps, and Russian cosmonaut Alexander Grebenkin, who launched on 4 March 2024 and were transferred from Expedition 70 after Soyuz MS-24 departure.
NASA astronauts Barry Wilmore and Sunita Williams arrived at the station on 6 June 2024 as part of the Boeing Crew Flight Test. Their visit was planned to be brief. However, due to technical issues with their spacecraft, their stay was extended, and they became de facto members of the ISS crew. They assisted with various tasks, including research, housekeeping, and maintenance. On 24 August 2024, NASA announced that the Boeing Starliner spacecraft would return to Earth unmanned with Wilmore and Williams returning on the SpaceX Crew-9 mission in early 2025. NASA also announced that Wilmore and Williams would formally be added to the Expedition 71/72/73 crew.
Events manifest.
Events involving crewed spacecraft are listed in bold. 
Previous mission: Expedition 70
6 April 2024 – Soyuz MS-24 Undocking (includes Visiting Expedition 21), official switch from Expedition 70
25 April 2024 – EVA-1 (VKD-62) Kononenko/Chub: 4 hrs, 36 mins
28 April 2024 – CRS SpX-30 Undocking
2 May 2024 – SpaceX Crew-8 Redocking
28 May 2024 – Progress MS-25/86P Undocking
1 June 2024 – Progress MS-27/88P Docking
6 June 2024 – Boeing Crew Flight Test Docking
24 June 2024 – EVA-2 (US-90) Dyson/Barratt: 0 hrs, 31 mins
12 July 2024 – CRS NG-20 Unberthing &amp; Release
6 August 2024 – CRS NG-21 Capture &amp; Berthing
13 August 2024 – Progress MS-26/87P Undocking
17 August 2024 – Progress MS-28/89P Docking
4 September 2024 – Wilmore and Williams' seat liner moved from Boeing CFT swapped to SpaceX Crew-8 for CFT uncrewed landing
6 September 2024 – Boeing Crew Flight Test Uncrewed Undocking
11 September 2024 – Soyuz MS-26 Docking
22 September 2024 – ISS Expedition 71/72 Change of Command Ceremony from Oleg Kononenko to Sunita Williams
23 September 2024 – Soyuz MS-25 Undocking, official switch to Expedition 72
Next: Expedition 72
Vehicle manifest.
The Prichal aft, forward, starboard, and aft ports all have yet to be used since the module originally docked to the station and are not included in the table.
References.
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