Jamie Groh - Commercial Crew Program

NASA’s Boeing Crew Flight Test Targets New Launch Date

A rocket with a spacecraft atop stand in the center of the image illuminated by spotlights against a dark sunset sky. — A United Launch Alliance Atlas V rocket with Boeing’s Starliner spacecraft atop illuminated by spotlights on the launch pad of Space Launch Complex-41 at Cape Canaveral Space Force Station in Florida is photographed ahead of the NASA’s Boeing Crew Flight Test, the first Starliner mission to send astronauts to the International Space Station as part of the agency’s Commercial Crew Program. Photo credit: NASA/ Joel Kowsky

NASA’s Boeing Crew Flight Test now is targeted to launch no earlier than 6:16 p.m. EDT Friday, May 17, to the International Space Station. Following a thorough data review completed on Tuesday, ULA (United Launch Alliance) decided to replace a pressure regulation valve on the liquid oxygen tank on the Atlas V rocket’s Centaur upper stage.

ULA plans to roll the rocket, with Boeing’s Starliner spacecraft, back to its Vertical Integration Facility at Cape Canaveral Space Force Station in Florida on Wednesday, May 8, to begin the replacement. The ULA team will perform leak checks and functional checkouts in support of the next launch attempt.

The oscillating behavior of the valve during prelaunch operations, ultimately resulted in mission teams calling a launch scrub on May 6. After the ground crews and astronauts Butch Wilmore and Suni Williams safely exited from Space Launch Complex-41, the ULA team successfully commanded the valve closed and the oscillations were temporarily dampened. The oscillations then re-occurred twice during fuel removal operations. After evaluating the valve history, data signatures from the launch attempt, and assessing the risks relative to continued use, the ULA team determined the valve exceeded its qualification and mission managers agreed to remove and replace the valve.

Mission managers discussed the details leading to the decision to scrub the May 6 launch opportunity during a news conference shortly after the scrub call at NASA’s Kennedy Space Center in Florida.

Wilmore and Williams will remain in crew quarters at NASA Kennedy in quarantine until the next launch opportunity. The duo will be the first to launch aboard Starliner to the space station as part of the agency’s Commercial Crew Program.

NASA’s Boeing Crew Flight Test Targets No Earlier than Friday, May 10

After the first launch attempt of NASA’s Boeing Crew Flight Test, a news conference is held on Monday, May 6, 2024 at the agency’s Kennedy Space Center in Florida. As part of the agency’s Commercial Crew Program, the first crewed launch to the International Space Station aboard Boeing’s Starliner spacecraft atop a United Launch Alliance Atlas V rocket from Space Launch Complex-41 at nearby Cape Canaveral Space Force Station was targeted for 10:34 p.m. ET but scrubbed for the day. Photo credit: NASA/Kim Shiflett

NASA, Boeing, and ULA (United Launch Alliance) are targeting no earlier than Friday, May 10, for launch of the agency’s Boeing Crew Flight Test to the International Space Station, pending resolution of the technical issue that prevented the May 6 launch attempt.

The delay allows teams to complete data analysis on a pressure regulation valve on the liquid oxygen tank of the Atlas V rocket ‘s Centaur upper stage and determine whether it is necessary to replace the valve.

Mission managers discussed the details that led to the decision during a news conference Monday night at NASA’s Kennedy Space Center.

Following the scrub, NASA astronaut Butch Wilmore and Suni Williams exited the Starliner spacecraft and launch pad at Space Launch Complex-41 at Cape Canaveral Space Force Station in Florida and returned to the astronaut crew quarters at Kennedy. ULA, as per the normal recycle process, also removed liquid oxygen and hydrogen from the Atlas V first and second stages.

Learn about the crew flight test by following the mission blog, the commercial crew blog, @commercial crew on X, and commercial crew on Facebook. Learn more about station activities by following the space station blog, @space_station and @ISS_Research on X, as well as the ISS Facebook and ISS Instagram accounts.

NASA, SpaceX Target Late February for Crew-8 Launch to Station

Official SpaceX Crew-8 portrait with Roscosmos cosmonaut and Mission Specialist Aleksandr Grebenkin, and Pilot Michael Barratt, Commander Matthew Dominick, and Mission Specialist Jeanette Epps, all three NASA astronauts. Photo credit: NASA/Bill Stafford

NASA and SpaceX are targeting no earlier than 12:49 a.m. EST Wednesday, Feb. 28, for the launch of the agency’s SpaceX Crew-8 mission to the International Space Station. The launch of Crew-8 was adjusted to deconflict operations with Intuitive Machines’ IM-1, the company’s first lunar lander mission to the Moon as part NASA’s Commercial Lunar Payload Services initiative, currently targeted for Wednesday, Feb. 14. NASA and SpaceX will continue to assess Crew-8 readiness and may adjust the Crew-8 launch date following a successful IM-1 launch.

“The Commercial Crew Program has been following along with the IM-1 mission preparations, and we are wishing the Intuitive Machines and SpaceX teams all the best ahead of this extremely complex mission to the lunar surface,” said Steve Stich, program manager for NASA’s Commercial Crew Program.

NASA astronauts Matthew Dominick, Michael Barratt, and Jeanette Epps, and Roscosmos cosmonaut Alexander Grebenkin will lift off aboard a SpaceX Falcon 9 rocket from Launch Complex 39A at NASA’s Kennedy Space Center in Florida to perform research, technology demonstrations, and maintenance activities aboard the space station. Crew-8 is the eighth crew rotation mission with SpaceX to station, and the ninth human spaceflight as part of NASA’s Commercial Crew Program.

Details about the mission and NASA’s Commercial Crew Program can be found by following the Crew-8 blog, the commercial crew blog, X, and Facebook.