First crewed mission for Boeing's Starliner faces additional delay due to helium leak

Core Points - Boeing's Starliner crewed flight test has been rescheduled to May 21 to allow for additional on-the-ground testing [2][3] - The initial launch attempt on May 6 was canceled due to a malfunctioning pressure regulation valve on the Atlas V rocket [2] - Engineers discovered a small helium leak in the Starliner service module's thruster flange, but it is not expected to require replacement [3] Company Developments - NASA and Boeing are working on solutions for spacecraft testing and operational issues related to the Starliner program [3] - The upcoming flight will involve NASA astronauts Butch Wilmore and Suni Williams on a weeklong mission to the International Space Station [3] - The Starliner program has faced significant delays and over $1 billion in cost overruns, which Boeing is responsible for under NASA's fixed-price contract [3]