United Launch Alliance Set to Launch the CST-100 Starliner Spacecraft on Orbital Flight Test-2

An Atlas V rocket carrying the AEHF-6 mission for the U.S Space Force’s Space and Missile Systems Center lifts off from Space Launch Complex-41 at 4:18 p.m. EDT on March 26, 2020. (Credit: United Launch Alliance)

CAPE CANAVERAL SPACE FORCE STATION, Fla. (United Launch Alliance PR) — A United Launch Alliance (ULA) Atlas V rocket is in final preparations to launch Boeing’s CST-100 Starliner spacecraft on the Orbital Flight Test-2 (OFT-2) to the International Space Station (ISS) for NASA’s Commercial Crew Program. The launch is planned for Thurs. May 19 at 6:54 p.m. EDT from Space Launch Complex-41 at Cape Canaveral Space Force Station. The live launch broadcast begins no earlier than 6 p.m. EDT on May 19 at www.ulalaunch.com.

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What You Need to Know about NASA’s Boeing Orbital Flight Test-2

The Boeing CST-100 Starliner spacecraft is lifted at the Vertical Integration Facility at Space Launch Complex-41 at Cape Canaveral Space Force Station in Florida on May 4, 2022, ahead of its second Orbital Flight Test (OFT-2) to the International Space Station for NASA’s Commercial Crew Program. (Credits: NASA/Frank Michaux)

KENNEDY SPACE CENTER, Fla. (NASA PR) — NASA and Boeing are taking another major step on the path to regular human spaceflight to the International Space Station using American rockets to launch spacecraft from American soil with the second uncrewed test flight of a commercial crew spacecraft.

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Join the Virtual NASA Social to Experience Starliner’s Uncrewed Flight Test to Space Station

The Boeing CST-100 Starliner spacecraft is lifted at the Vertical Integration Facility at Space Launch Complex-41 at Cape Canaveral Space Force Station in Florida on May 4, 2022, ahead of its second Orbital Flight Test (OFT-2) to the International Space Station for NASA’s Commercial Crew Program. (Credits: NASA/Frank Michaux)

CAPE CANAVERAL SPACE FORCE STATION, Fla. (NASA PR) — Social media users are invited to register to take part in a global virtual NASA Social for the agency’s Boeing Orbital Flight Test-2 (OFT-2) to the International Space Station. This is the second uncrewed flight test of Boeing’s CST-100 Starliner spacecraft for NASA’s Commercial Crew Program.

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Coverage Set for NASA’s Boeing OFT-2 Briefings, Events, Broadcast

The Boeing CST-100 Starliner spacecraft is lifted at the Vertical Integration Facility at Space Launch Complex-41 at Cape Canaveral Space Force Station in Florida on May 4, 2022, ahead of its second Orbital Flight Test (OFT-2) to the International Space Station for NASA’s Commercial Crew Program. (Credits: NASA/Frank Michaux)

NASA Mission Update

NASA will provide coverage of the upcoming prelaunch, launch, and docking activities for the agency’s Boeing Orbital Flight Test-2 (OFT-2) to the International Space Station. Scheduled to launch at 6:54 p.m. EDT on Thursday, May 19, OFT-2 is the second uncrewed flight for Boeing’s CST-100 Starliner spacecraft as part of NASA’s Commercial Crew Program.

The Starliner spacecraft will launch on a United Launch Alliance (ULA) Atlas V rocket from Space Launch Complex-41 at Cape Canaveral Space Force Station in Florida. About 31 minutes after launch, the Starliner will reach its preliminary orbit. It is scheduled to dock to the space station at 7:10 p.m. on Friday, May 20. Prelaunch activities, launch, and docking will air live on NASA Television, the NASA app, and the agency’s website.

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Starliner Orbital Flight Test-2 Scheduled for May 19

Boeing’s Starliner spacecraft returned Aug. 19, 2021, from the United Launch Alliance Vertical Integration Facility to the Commercial Crew and Cargo Processing Facility at NASA’s Kennedy Space Center in Florida, where teams will work to diagnose and resolve a valve issue detected during the Aug. 3 launch attempt of NASA Boeing’s Orbital Flight Test-2. (Credit: Boeing)

KENNEDY SPACE CENTER, Fla. (NASA PR) — Media accreditation is open for prelaunch and launch activities for NASA’s Boeing Orbital Flight Test-2 (OFT-2) mission to the International Space Station, the second uncrewed flight test of the company’s CST-100 Starliner spacecraft for the agency’s Commercial Crew Program.

Liftoff on the United Launch Alliance Atlas V rocket with Starliner is targeted for Thursday, May 19, from Space Launch Complex-41 at Cape Canaveral Space Force Station in Florida.

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Boeing to Move Up Service Modules for Commercial Crew Flight Tests

Boeing engineers continue work at the United Launch Alliance Vertical Integration Facility on the Starliner propulsion system valves. (Credit: Boeing)

KENNEDY SPACE CENTER, Fla. (NASA PR) — Following extensive testing and analysis of oxidizer isolation valves on Boeing’s CST-100 Starliner service module propulsion system, Boeing has decided to move up service modules currently in production for its upcoming uncrewed and crewed flight tests to the International Space Station as part of NASA’s Commercial Crew Program.

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NASA Orders 3 Additional Crew Dragon Flights From SpaceX

The SpaceX Crew Dragon is pictured after undocking from the forward port on the Harmony module beginning its short trip to the space-facing port. (Credit: NASA TV)

WASHINGTON (NASA PR) — NASA intends to issue a sole source modification to SpaceX to acquire up to three additional crew flights to the International Space Station as part of its Commercial Crew Transportation Capabilities (CCtCap) contract. The additional crew flights allow NASA to maintain an uninterrupted U.S. capability for human access to the space station.

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Boeing Starliner Update: Valves Continue to be a Problem, No Launch Date in Sight

Boeing’s Starliner spacecraft returned Aug. 19, 2021, from the United Launch Alliance Vertical Integration Facility to the Commercial Crew and Cargo Processing Facility at NASA’s Kennedy Space Center in Florida, where teams will work to diagnose and resolve a valve issue detected during the Aug. 3 launch attempt of NASA Boeing’s Orbital Flight Test-2. (Credit: Boeing)

KENNEDY SPACE CENTER, Fla. (Boeing PR) — The NASA, Boeing team continues to make progress on the investigation of the oxidizer isolation valve issue on the Starliner service module propulsion system that was discovered ahead of the planned uncrewed Orbital Flight Test-2 (OFT-2) mission to the International Space Station in August.

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Starliner Returning to Factory to Resolve Valve Issue

Boeing engineers continue work at the United Launch Alliance Vertical Integration Facility on the Starliner propulsion system valves. (Credit: Boeing)

CAPE CANAVERAL SPACE FORCE STATION, Fla. (Boeing PR) — Today, Boeing informed NASA that the company will destack its CST-100 Starliner from the Atlas V rocket and return the spacecraft to the Commercial Crew and Cargo Processing Facility (C3PF) for deeper-level troubleshooting of four propulsion system valves that remain closed after last Tuesday’s scrubbed launch.

Starliner has sat atop the Atlas V rocket in ULA’s Vertical Integration Facility since August 4, where Boeing teams have worked to restore functionality to the affected valves.

The relocation of the spacecraft to the C3PF will require Boeing, NASA and United Launch Alliance to agree on a new launch date once the valve issue is resolved.

“Mission success in human spaceflight depends on thousands of factors coming together at the right time,” said John Vollmer, vice president and program manager, Boeing’s Commercial Crew Program. “We’ll continue to work the issue from the Starliner factory and have decided to stand down for this launch window to make way for other national priority missions.”

Boeing will continue to provide information and updates at www.StarlinerUpdates.com as it becomes available.

NASA, Boeing Make Progress on Starliner Valve Issue

Boeing engineers continue work at the United Launch Alliance Vertical Integration Facility on the Starliner propulsion system valves. (Credit: Boeing)

CAPE CANAVERAL SPACE FORCE STATION, Fla. (NASA PR) — NASA and Boeing continued work over the weekend and Monday morning on the company’s CST-100 Starliner spacecraft service module propulsion system in preparation for the Orbital Flight Test-2 mission to the International Space Station.

Work progressed to restore functionality to several valves in the Starliner propulsion system that did not open as designed during the launch countdown for the Aug. 3 launch attempt. The valves connect to thrusters that enable abort and in-orbit maneuvering.

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NASA, Boeing Standing Down on Aug. 4 Starliner Launch Attempt

The Boeing CST-100 Starliner spacecraft is secured atop a United Launch Alliance Atlas V rocket at the Vertical Integration Facility at Space Launch Complex 41 at Cape Canaveral Space Force Station in Florida on July 17, 2021. Starliner will launch on the Atlas V for Boeing’s second Orbital Flight Test (OFT-2) for NASA’s Commercial Crew Program. The spacecraft rolled out from Boeing’s Commercial Crew and Cargo Processing Facility at NASA’s Kennedy Space Center earlier in the day. (Credits: Boeing/John Grant)

CAPE CANAVERAL SPACE FORCE STATION, Fla. (NASA PR) — NASA and Boeing are standing down from the Wednesday, Aug. 4, launch attempt of the agency’s Orbital Flight Test-2 to the International Space Station as mission teams continue to examine the cause of the unexpected valve position indications on the CST-100 Starliner propulsion system.

Early in the launch countdown for the Aug. 3 attempt, mission teams detected indications that not all valves were in the proper configuration needed for launch. Mission teams decided to halt the countdown to further analyze the issue.

NASA and Boeing worked through several steps to troubleshoot the incorrect valve indications, including cycling the service module propulsion system valves, within the current configuration of the Starliner and United Launch Alliance Atlas V rocket at Space Launch Complex-41 on Cape Canaveral Space Force Station in Florida.

Mission teams have decided to roll the Atlas V and Starliner back to the Vertical Integration Facility (VIF) for further inspection and testing where access to the spacecraft is available. Boeing will power down the Starliner spacecraft this evening. The move to the VIF is expected to take place as early as tomorrow.

Engineering teams have ruled out a number of potential causes, including software, but additional time is needed to complete the assessment.

NASA and Boeing will take whatever time is necessary to ensure Starliner is ready for its important uncrewed flight test to the space station and will look for the next available opportunity after resolution of the issue.

Boeing Starliner Launch Scrubbed Due to Valve Issue

The Boeing CST-100 Starliner spacecraft is secured atop a United Launch Alliance Atlas V rocket at the Vertical Integration Facility at Space Launch Complex 41 at Cape Canaveral Space Force Station in Florida on July 17, 2021. Starliner will launch on the Atlas V for Boeing’s second Orbital Flight Test (OFT-2) for NASA’s Commercial Crew Program. The spacecraft rolled out from Boeing’s Commercial Crew and Cargo Processing Facility at NASA’s Kennedy Space Center earlier in the day. (Credits: Boeing/John Grant)

CAPE CANAVERAL SPACE FORCE STATION, Fla. (Boeing PR) — During pre-launch preparations for the uncrewed test flight of the CST-100 Starliner spacecraft, Boeing engineers monitoring the health and status of the vehicle detected unexpected valve position indications in the propulsion system. The issue was initially detected during check outs following yesterday’s electrical storms in the region of Kennedy Space Center.

Consequently, the launch of the Starliner spacecraft to the International Space Station atop a United Launch Alliance Atlas V rocket will be postponed. The launch was scheduled for 1:20 p.m. ET on Tuesday, Aug. 3. Boeing and NASA teams are assessing the situation. The team will provide updates regarding a launch attempt on Wednesday, Aug. 4.

“We’re disappointed with today’s outcome and the need to reschedule our Starliner launch,” said John Vollmer, vice president and program manager, Boeing’s Commercial Crew Program. “Human spaceflight is a complex, precise and unforgiving endeavor, and Boeing and NASA teams will take the time they need to ensure the safety and integrity of the spacecraft and the achievement of our mission objectives.”

Updates will be provided by NASA and Boeing as information is analyzed and confirmed.

Please follow @NASA, @Commercial_Crew and @BoeingSpace on Twitter, or visit www.nasa.gov or www.StarlinerUpdates.com, for more information.

Editor’s note: NASA said the next available launch opportunity would be 12:57 p.m. EDT on Wednesday, Aug. 4 if all issues are resolved in time.

NASA Updates Coverage, Invites Public to Virtually Join Starliner Launch

The Boeing CST-100 Starliner spacecraft is secured atop a United Launch Alliance Atlas V rocket at the Vertical Integration Facility at Space Launch Complex 41 at Cape Canaveral Space Force Station in Florida on July 17, 2021. Starliner will launch on the Atlas V for Boeing’s second Orbital Flight Test (OFT-2) for NASA’s Commercial Crew Program. The spacecraft rolled out from Boeing’s Commercial Crew and Cargo Processing Facility at NASA’s Kennedy Space Center earlier in the day. (Credits: Boeing/John Grant)

CAPE CANAVERAL SPACE FORCE STATION, Fla. (NASA PR) — NASA will provide coverage of the upcoming prelaunch, launch, and docking activities for the agency’s Boeing Orbital Flight Test-2 (OFT-2) mission to the International Space Station. OFT-2 is the second uncrewed flight for Boeing’s CST-100 Starliner spacecraft as part of the agency’s Commercial Crew Program. The mission is targeted to launch at 1:20 p.m. EDT Tuesday, Aug. 3

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Starliner Launch Rescheduled for Tuesday, Aug. 3

The Boeing CST-100 Starliner spacecraft is secured atop a United Launch Alliance Atlas V rocket at the Vertical Integration Facility at Space Launch Complex 41 at Cape Canaveral Space Force Station in Florida on July 17, 2021. Starliner will launch on the Atlas V for Boeing’s second Orbital Flight Test (OFT-2) for NASA’s Commercial Crew Program. The spacecraft rolled out from Boeing’s Commercial Crew and Cargo Processing Facility at NASA’s Kennedy Space Center earlier in the day. (Credits: Boeing/John Grant)

CAPE CANAVERAL SPACE FORCE STATION, Fla. (NASA PR) — NASA, Boeing and United Launch Alliance now are targeting 1:20 p.m. EDT Tuesday, Aug. 3, for launch of the Orbital Flight Test-2 (OFT-2) with the International Space Station ready for the arrival of the Starliner spacecraft. NASA’s live launch coverage begins at 12:30 p.m. Docking is targeted for 1:37 p.m. Wednesday, Aug. 4.

OFT-2, Boeing’s second uncrewed flight, is designed to test the end-to-end capabilities of the new system for NASA’s Commercial Crew Program.

Learn more about NASA’s commercial crew program by following the commercial crew blog, @commercial_crew  and commercial crew on Facebook.

Learn more about station activities by following @space_station and @ISS_Research on Twitter as well as the ISS Facebook and ISS Instagram accounts.

Earliest Launch Opportunity for NASA’s Boeing OFT-2 Mission is Aug. 3

The Boeing CST-100 Starliner spacecraft is secured atop a United Launch Alliance Atlas V rocket at the Vertical Integration Facility at Space Launch Complex 41 at Cape Canaveral Space Force Station in Florida on July 17, 2021. Starliner will launch on the Atlas V for Boeing’s second Orbital Flight Test (OFT-2) for NASA’s Commercial Crew Program. The spacecraft rolled out from Boeing’s Commercial Crew and Cargo Processing Facility at NASA’s Kennedy Space Center earlier in the day. (Credits: Boeing/John Grant)

CAPE CANAVERAL SPACE FORCE BASE, Fla. (NASA PR) — NASA and Boeing have elected to stand down from Friday’s launch attempt of the agency’s second Orbital Flight Test (OFT-2) mission. Currently, the earliest available launch opportunity is 1:20 p.m. EDT Tuesday, Aug. 3. The International Space Station team will use the time to continue working checkouts of the newly arrived Roscosmos Nauka multipurpose laboratory module (MLM) and to ensure the station will be ready for Starliner’s arrival.

Launch preparations will resume following a final decision from the International Space Station and Commercial Crew Program teams for the next opportunity to send Starliner on its way to complete the OFT-2 mission, which will set the stage for the first Crew Flight Test.

Earlier Thursday, Starliner atop its United Launch Alliance Atlas V rocket was moved to its seaside launch pad for standard launch preparations. Teams are assessing moving the vehicle back to its Vehicle Integration Facility to protect it from weather until launch preparations resume. Starliner and Atlas V are in a safe, flight-ready configuration and do not require any near-term servicing.

The Atlas V was assembled throughout July, which included the transfer of Starliner from Boeing’s spacecraft processing facility at NASA’s Kennedy Space Center in Florida to nearby Cape Canaveral Space Force Station Launch Complex 41 for mating atop the rocket.