Boeing's first astronaut launch is off until late next week to replace a bad rocket valve

Boeing’s Starliner capsule atop an Atlas V rocket is seen at Space Launch Complex 41 at the Cape Canaveral Space Force Station a day after its mission to the International Space Station was scrubbed because of an issue with a pressure regulation valve, Tuesday, May 7, 2024, in Cape Canaveral, Fla. (AP Photo/John Raoux)

CAPE CANAVERAL, Fla. (AP) — Boeing’s first astronaut launch is off until late next week because of a bad valve in the rocket that needs to be replaced.

The countdown was halted Monday night after a pressure-relief valve in the Atlas V rocket’s upper stage opened and closed so quickly and so many times that it created a loud buzz. Engineers for United Launch Alliance determined Tuesday that the valve has exceeded its design limit and must now be removed, pushing liftoff to no earlier than May 17.

Boeing’s Starliner capsule atop an Atlas V rocket is seen at Space Launch Complex 41 at the Cape Canaveral Space Force Stationa day after its mission to the International Space Station was scrubbed because of an issue with a pressure regulation valve,Tuesday, May 7, 2024, in Cape Canaveral, Fla. (AP Photo/Terry Renna)

The NASA astronauts assigned to the Starliner capsule’s test flight to the International Space Station — Butch Wilmore and Suni Williams — will remain at Cape Canaveral.

Boeing’s Starliner capsule atop an Atlas V rocket is seen at Space Launch Complex 41 at the Cape Canaveral Space Force Station a day after its mission to the International Space Station was scrubbed because of an issue with a pressure regulation valve, Tuesday, May 7, 2024, in Cape Canaveral, Fla. (AP Photo/John Raoux)

Starliner’s first crew flight already is years behind schedule because of a multitude of capsule problems.

___

The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Science and Educational Media Group. The AP is solely responsible for all content.

Boeing’s Starliner capsule atop an Atlas V rocket is seen at Space Launch Complex 41 at the Cape Canaveral Space Force Stationa day after its mission to the International Space Station was scrubbed because of an issue with a pressure regulation valve,Tuesday, May 7, 2024, in Cape Canaveral, Fla. (AP Photo/Terry Renna)