• Skip to primary navigation
  • Skip to content
  • Skip to primary sidebar
  • Skip to custom navigation
  • Boeing.com

Starliner UpdatesStarliner Updates

  • Home
  • Starliner
  • The Crew
  • Partners
  • Mission Updates
  • Boeing Newsroom Contacts
Home | Mission Updates | Boeing Works to Open Starliner Valves, Determine Cause of Valve Issues

Boeing Works to Open Starliner Valves, Determine Cause of Valve Issues

August 12, 2021

As Boeing teams continue to work around the clock to return functionality to a number of oxidizer valves on the CST-100 Starliner’s propulsion system, the company is simultaneously working with its NASA and Aerojet Rocketdyne partners to determine the cause of the valve issues discovered during prelaunch checks.

Nine of the previously affected 13 valves are now open and functioning normally after the application of electrical and thermal techniques to prompt and command them open. Similar techniques are now being applied to the four valves that remain closed.

“Over the past couple of days, our team has taken the necessary time to safely access and test the affected valves, and not let the launch window dictate our pace,” said John Vollmer, Starliner vice president and program manager.

The company will work with NASA and United Launch Alliance to confirm a new launch date when the spacecraft is ready.

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

Primary Sidebar

Quick Links

  • Boeing Newsroom Contacts
  • @BoeingSpace (Twitter)
  • Boeing Starliner Launch Website
  • Boeing YouTube
  • United Launch Alliance
  • @ulalaunch (Twitter)
  • NASA (Twitter)
  • NASA @Commercial_Crew (Twitter)
  • NASA Commercial Crew
  • NASA Digital Press Kit
  • NASA Kennedy Space Center
  • NASA Johnson Space Center
  • NASA Commercial Crew flickr
  • Home
  • Starliner
  • The Crew
  • Partners
  • Mission Updates
  • Boeing Newsroom Contacts
  • Privacy and Cookie Policy

© 2025. Powered by JettyManage My Subscriptions