NASA, Boeing Chart Course for Starliner Return Review

Boeing's Starliner spacecraft that launched NASA's Crew Flight Test astronauts Butch Wilmore and Suni Williams to the International Space Station is pictured docked to the Harmony module's forward port on Wednesday, July 3, 2024. Photo credit: NASA

Engineering and spaceflight specialists from NASA and Boeing continue data analysis ahead of a decision this week on the path forward for the Starliner spacecraft's return from the International Space Station.

NASA's decision on whether to return Starliner to Earth with astronauts aboard is expected no earlier than Saturday, Aug. 24 at the conclusion of an agency-level review chaired by Ken Bowersox, the associate administrator of NASA's Space Operations Mission Directorate. The agency flight readiness review is where any formal dissents are presented and reconciled. Other agency leaders who routinely participate in launch and return readiness reviews for crewed missions include NASA's administrator, deputy administrator, associate administrator, various agency center directors, the Flight Operations Directorate, and agency technical authorities.

NASA will host a televised news conference following the review's conclusion to discuss the agency's decision and next steps. More information on the news conference will be shared once confirmed. After the agency-level decision, program and flight control teams will continue preparing for Starliner's return, including training sessions and other actions as appropriate.

Ahead of the agency-level review, NASA and Boeing are working to finalize and present flight rationale to various teams across the community and to the program control board. Engineering teams have been working to evaluate a new model that represents the thruster mechanics and is designed to more accurately predict performance during the return phase of flight. This data could help teams better understand system redundancy from undock to service module separation. Ongoing efforts to complete the new modelling, characterize spacecraft performance data, refine integrated risk assessments, and determine community recommendations will fold into the agency-level review.

Alongside the crew members of Expedition 71, NASA astronauts Butch Wilmore, commander, and Suni Williams, pilot, continue supporting a host of research, maintenance, and other activities aboard the microgravity laboratory since arriving on Starliner on June 6.

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