Starliner is still set to fly on its historic first flight with astronauts on June 1, but that could change as the team works through "complicated" issues following a small helium leak.
NASA and Boeing officials emphasized they are carefully weighing the decision to launch Starliner's first test mission with astronauts to the International Space Station (ISS). The approximately one-week mission is known as Crew Flight Test (CFT) and includes NASA astronauts Butch Wilmore and Suni Williams, both former U.S. Navy test pilots.
