Starliner Returns to Factory, Preparations Underway to Resolve Valve Issue

OFT-2 Starliner spacecraft
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. Photo credit: Boeing

Teams from Boeing and United Launch Alliance (ULA) safely returned the CST-100 Starliner to its production facility in Florida on Aug. 19 for continued work on the spacecraft’s service module propulsion system.

The Starliner Orbital Flight Test-2 spacecraft was removed from its Atlas V rocket inside the Vertical Integration Facility at Space Launch Complex-41 on Cape Canaveral Space Force Station in Florida and returned to the Commercial Crew and Cargo Processing Facility on NASA’s Kennedy Space Center.

The team now will perform propulsion system checkouts inside the factory’s hazardous processing area and determine the appropriate vehicle configuration for accessing and analyzing the system further. NASA and Boeing will recommend forward work as part of a formal process designed to aid in determining root cause and remediation steps.

In the weeks ahead, engineering teams from NASA and Boeing will work to diagnose and ultimately resolve a valve issue detected during the Aug. 3 countdown for NASA’s Boeing Orbital Flight Test-2, and resulted in the decision to postpone the launch destined for the International Space Station.

NASA, Boeing, and ULA will establish a new launch date once the issue is resolved.

NASA, Boeing to Move Starliner to Production Facility for Propulsion System Evaluation

Boeing's CST-100 Starliner spacecraft is in view in the United Launch Alliance Vertical Integration Facility at Space Launch Complex 41 on Aug. 9, 2021.
Boeing’s CST-100 Starliner spacecraft is in view in the United Launch Alliance Vertical Integration Facility at Space Launch Complex 41 on Aug. 9, 2021. Photo credit: Boeing

NASA and Boeing have decided to postpone the launch of Orbital Flight Test-2 to the International Space Station as teams continue work on the CST-100 Starliner propulsion system.

Engineering teams have been working to restore functionality to several valves in the Starliner propulsion system from inside United Launch Alliance’s Vertical Integration Facility 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.

“We made a lot of progress to open the valves from inside the Vertical Integration Facility, and the NASA-Boeing teams did a great job doing everything we could to get ready for this launch opportunity,” said Kathryn Lueders, associate administrator for NASA’s Human Exploration and Operations Mission Directorate. “Although we wanted to see Starliner fly in this window, it’s critical that our primary focus is the safety of the crew transportation system – for the safety of the space station and the crew members that will be flying on these vehicles. We’ll only fly this test when we think we are ready, and can complete the mission objectives.”

Inside the VIF, Boeing was able to prompt nine of 13 valves open that previously were in the closed position using commanding, mechanical, electrical and thermal techniques. Teams will now begin the process to move Starliner back to Boeing’s Commercial Crew and Cargo Processing Facility in Florida for deeper-level troubleshooting of four propulsion system valves that remain closed and more detailed analysis on the spacecraft.

“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.”

NASA, Boeing and ULA will establish a new launch date once the issue is resolved.

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.
Boeing engineers continue work at the United Launch Alliance Vertical Integration Facility on the Starliner propulsion system valves. Photo credit: Boeing

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.

With the United Launch Alliance (ULA) Atlas V and Starliner in the Vertical Integration Facility (VIF) near Space Launch Complex-41 on Cape Canaveral Space Force Station in Florida, engineering teams are able to power on Starliner allowing the vehicle to receive commands, and have direct access to the spacecraft for troubleshooting.

Inside the VIF, Boeing has been able to command seven of 13 valves open that previously were in the closed position. Test teams are applying mechanical, electrical and thermal techniques to prompt the valves to open, and are moving forward with a systematic plan to open the remainder of the affected valves, demonstrate repeatable system performance, and verify the root cause of the issue before returning Starliner to the launch pad for its Orbital Flight Test-2 mission.

Boeing also has completed physical inspections and chemical sampling on the exterior of a number of the affected valves, which indicated no signs of damage or external corrosion.

In the coming days, NASA and Boeing will continue work to bring all affected valves into the proper configuration. If all valve functionality can be restored and root cause identified, NASA will work with Boeing to determine a path to flight for the important uncrewed mission to the space station.

NASA, Boeing and ULA are assessing the potential for several launch opportunities with the earliest available in mid-August. Any launch date options would protect for the planetary window for the agency’s Lucy mission – the first-ever mission to explore Trojan asteroids.

Boeing Starliner Returned to Vertical Integration Facility for Testing

A United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft
A United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft onboard is seen near the Vertical Integration Facility at Cape Canaveral Space Force Station in Florida. Photo by NASA/Joel Kowsky

NASA and Boeing are continuing to work through steps to determine what caused the unexpected valve position indications on the CST-100 Starliner propulsion system during the countdown for its Aug. 3 launch attempt.

Now that the United Launch Alliance Atlas V rocket with the Starliner spacecraft on top has been returned to its Vertical Integration Facility (VIF) at Space Launch Complex-41 on Cape Canaveral Space Force Station, engineers will have direct access to Starliner with the assembly of support structures around the spacecraft’s service module for continued troubleshooting.

Boeing will power up Starliner, allowing the vehicle to receive commands providing the teams with real-time data.

The data will drive any corrective measures that may be necessary to ensure Starliner is ready for launch. When NASA’s Commercial Crew Program and Boeing agree the issue is resolved, a new launch opportunity will be selected, taking into account the readiness of all parties involved and the availability of the International Space Station and its crew to support the spacecraft’s arrival.

NASA, Boeing Continue Starliner Data Analysis

Atlas V rocket with Starliner on launch pad
A United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft onboard is seen on the launch pad on Thursday, July 29, 2021, at Space Launch Complex 41 in preparation for the Orbital Flight Test-2 (OFT-2) mission at Cape Canaveral Space Force Station in Florida. Photo Credit: (NASA/Aubrey Gemignani)

NASA and Boeing are continuing to work through steps to determine what caused the unexpected valve position indications on the CST-100 Starliner propulsion system.

The United Launch Alliance Atlas V with the Starliner spacecraft on top will be returned to its Vertical Integration Facility (VIF) at Launch Complex-41 on Cape Canaveral Space Force Station Thursday where engineers will have direct access to Starliner for continued troubleshooting.

The data will drive any corrective measures that may be necessary to ensure Starliner is ready for launch. When NASA’s Commercial Crew Program and Boeing Space agree the issue is resolved, a new launch opportunity will be selected, taking into account the readiness of all parties involved.

“The Boeing and NASA teams are working methodically to understand what caused the valve indications on the Starliner service module propulsion system,” Steve Stich, manager of the Commercial Crew Program, said. “The troubleshooting in the Vertical Integration Facility will help focus on potential causes and next steps before we fly the OFT-2 mission.”

Early in the launch countdown for the Tuesday, Aug. 3 launch attempt, engineers detected indications that not all of Starliner’s propulsion system valves were in the proper configuration needed for launch of the company’s second uncrewed orbital flight test to the International Space Station, a mission designed to test the end-to-end capabilities of the crew-capable system as part of NASA’s Commercial Crew Program.

Mission teams decided to halt the countdown to further analyze the issue, which was conducted later Tuesday via several steps to troubleshoot the incorrect valve indications, including cycling the service module propulsion system valves.

After presenting the data to NASA and Boeing managers, it was decided to relocate the Atlas V and Starliner to the VIF for further inspection and testing where access to the spacecraft is available. Engineering teams have ruled out a number of potential causes, including software, and the direct access is required to continue the assessment.

“This mission is extremely important for the Commercial Crew Program on the path to the Boeing Crewed Flight Test,” Stich said. “We will fly the mission when we are ready. I am extremely proud of the NASA and Boeing teams for their professionalism, perseverance, and methodical approach to solving complex problems.”

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.

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

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.

NASA’s Boeing OFT-2: Launch Scrubbed for Aug. 3. Attempt

The United Launch Alliance Atlas V rocket with Boeing's CST-100 Starliner atop is on the pad at Space Launch Complex-41 on Aug. 3, 2021.
The United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner atop is on the pad at Space Launch Complex-41 on Aug. 3, 2021. Photo credit: NASA

NASA, Boeing and United Launch Alliance (ULA) have scrubbed the Aug. 3 launch attempt of the agency’s Orbital Flight Test-2 to the International Space Station due to unexpected valve position indications in the Starliner propulsion system. ULA will begin removing propellant from the Atlas V rocket.

Pending resolution of the forward work, our next available launch opportunity would be 12:57 p.m. EDT on Wednesday, Aug. 4.

For more information on the technical issue, click here.

Follow along with launch activities and get more information about the mission at: https://blogs.nasa.gov/commercialcrew/.

Learn more about commercial crew and space station activities by following @Commercial_Crew@space_station, and @ISS_Research on Twitter as well as the Commercial Crew FacebookISS Facebook and ISS Instagram accounts

Public Shares Zero-G Indicator Ideas for NASA’s Boeing Starliner Launch

Expedition 65 prime crew member Oleg Novitskiy of Roscosmos, holds up a toy cat that will be used in the Soyuz capsule to help indicate the start of weightlessness after leaving the Earth’s atmosphere.
Expedition 65 prime crew member Oleg Novitskiy of Roscosmos holds up a toy cat used in the Soyuz capsule to help indicate the start of weightlessness after leaving the Earth’s atmosphere. Stuffed animals are a traditional category for zero-gravity indicators. Photo credit: NASA/GCTC/Andrey Shelepin

We asked our virtual guests what they would take with them as a zero-gravity indicator if they were launching on the Boeing Starliner spacecraft on July 30 for NASA’s Boeing Orbital Flight Test-2 mission. More than 2,600 of you responded. Two large categories of items emerged: stuffed animals and balls.

Nearly 10% of people suggested something stuffed. This is a traditional category for zero-gravity indicators. Some guests suggested very specific stuffed animals – Snoopy, Baby Yoda, Fiona the hippo from the Cincinnati Zoo, or a something that had been in their family for multiple generations.

We don’t know where they’re shopping, but a few guests suggested stuffed people, Tory Bruno of United Launch Alliance, Jeff Goldblum, and Patrick Star from Sponge Bob fame to be exact. One guest had the lovely idea that “stuffed animals of some sort that would then be donated to sick children.”

Another 10% of respondents suggested some type of ball – or every type of ball. There were tennis balls, baseballs, bouncy balls, disco balls, cannon balls, and balls of yarn. There was the very specific Euro 2020 official football. Finally, there was a handful of very wise respondents packing stress balls.

Water was another frequent suggestion – sometimes with a goldfish in it for good measure, sometimes with an eye toward drinking it if need be! Balloons, books, and M&M’s also were mentioned in multiples. The few suggestions of glitter would no doubt be to the consternation of Starliner engineers! One guest hurt our heads by suggesting “a toy Starliner with a smaller Starliner inside the toy, and to check for zero gravity we look inside the toy to see if the smaller Starliner is floating.”

Our favorite suggestion? A clear cube containing everyone’s name on a card who registered for the event.  We’d have trouble fitting the more than 13,000 of you there! But we love the thought.

We’d love to have you along for the next virtual guest program – you can join our standing list or register for specific upcoming missions by visiting nasa.gov/virtualguest. In addition to sharing their thoughts on a launch-related question, virtual guests receive emails with curated launch resources, notifications about NASA activities, and updates on any launch time or date changes.

Whether it’s your first stamp or your eighth, NASA hopes you’ll print, fold, and get ready to fill your virtual passport. Stamps will be emailed following docking to all virtual attendees who registered by email.

Liftoff of the United Launch Alliance Atlas V rocket with Starliner is targeted for 2:53 p.m. EDT Friday, July 30, from Space Launch Complex-41 on Cape Canaveral Space Force Station in Florida.

NASA’s Boeing Orbital Flight Test-2 Mission Remains on Target

The Boeing CST-100 Starliner spacecraft to be flown on Orbital Flight Test-2 (OFT-2) is seen in the Commercial Crew and Cargo Processing Facility at NASA’s Kennedy Space Center in Florida on June 2. Part of the agency’s Commercial Crew Program, OFT-2 is a critical developmental milestone on the company’s path to fly crew missions for NASA. Photo credit: Boeing

Teams from NASA, Boeing and United Launch Alliance completed a launch readiness review on July 27 ahead of NASA’s Boeing Orbital Flight Test-2 mission to the International Space Station. The launch teams still are “go” for launch of Boeing’s CST-100 Starliner spacecraft on a mission to the microgravity laboratory on the company’s second uncrewed flight test.

Launch is scheduled at 2:53 p.m. EDT on Friday, July 30, on a United Launch Alliance Atlas V rocket from Space Launch Complex-41 at Cape Canaveral Space Force Station in Florida.

At 1 p.m., NASA will host a prelaunch news briefing at the agency’s Kennedy Space Center in Florida. Participants are:

  • Steve Stich, manager, NASA’s Commercial Crew Program
  • Joel Montalbano, manager, NASA’s International Space Station Program
  • John Vollmer, vice president and program manager, Boeing Commercial Crew Program
  • Gary Wentz, vice president, Government and Commercial Programs, ULA
  • Jennifer Buchli, deputy chief scientist, NASA’s International Space Station Program
  • Will Ulrich, launch weather officer, U.S. Space Force, 45th Weather Squadron

For a launch Friday, meteorologists with the U.S. Space Force 45th Weather Squadron are predicting a 40% chance of favorable weather. The primary weather concerns for launch day are the cumulus cloud rule, surface electric rule and lightning rule violations during the instantaneous launch window.

More details about the mission and NASA’s Commercial Crew Program can be found 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.

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

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.
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. Photo credit: Boeing/John Grant

Leerlo en español aquí.

NASA and Boeing are taking another major step on the path to regular human spaceflight launches to the International Space Station on American rockets and spacecraft from American soil with the second uncrewed flight test of Boeing’s CST-100 Starliner as part of the agency’s Commercial Crew Program.

NASA’s Boeing Orbital Flight Test-2 (OFT-2) is targeting launch of the Starliner spacecraft on a United Launch Alliance Atlas V rocket at 2:53 p.m. EDT Friday, July 30, from Space Launch Complex-41 on Cape Canaveral Space Force Station in Florida. Starliner is expected to arrive at the space station for docking about 24 hours later with more than 400 pounds of NASA cargo and crew supplies.

The mission will test the end-to-end capabilities of Starliner from launch to docking, atmospheric re-entry, and a desert landing in the western United States. OFT-2 will provide valuable data that will help NASA certify Boeing’s crew transportation system to carry astronauts to and from the space station.

Read the full feature here.