NASA astronaut Nicole Mann, who is expected to join a Starliner flight next year, said she remains convinced of the spacecraft’s safety.
Ms Mann said: “We trained extensively for this type of contingency and had we been on board there, there could have been actions that we could have taken.
“That’s why you have test pilots on board, especially for these early missions.
“We are looking forward to flying on Starliner. We don’t have any safety concerns.”