(CNN) —ASaturday target datefor the highly anticipated crewed maiden voyage of Boeing’s Starliner is now off the table — and NASA has not immediately named a new one.
“The team has been in meetings for two consecutive days, assessing flight rationale, system performance, and redundancy,” NASA said in a statement. “There is still forward work in these areas, and the next possible launch opportunity is still being discussed.”
The update comes after several previous delays this month, and a week after Starliner mission teamsreported a small helium leakin the service module of the spacecraft. They traced the leak to a part called a flange on a single reaction control system thruster, where helium is used to allow the thrusters to fire.
Just days ago,NASA announcedthat teams were aiming to launch no earlier than May 25, saying the additional time before launch would give specialists more time to evaluate the issue, though tests to that point had found that the leak doesn’t pose a threat to the mission.
“Pressure testing performed on May 15 on the spacecraft’s helium system showed the leak in the flange is stable and would not pose a risk at that level during the flight,” the space agency said in a Friday news release. “The testing also indicated the rest of the thruster system is sealed effectively across the entire service module. Boeing teams are working to develop operational procedures to ensure the system retains sufficient performance capability and appropriate redundancy during the flight.”
This mission, dubbed the Crew Flight Test, could be the final major milestone before NASA deems Boeing’s spacecraft ready for routine operations as part of the federal agency’s Commercial Crew Program.
The historic crewed flight was about two hours from liftoff on May 6 when it was scrubbed due toan issue with the a valveon the second stage, or upper portion, of the Atlas V rocket that Starliner will ride to space.
The NASA astronauts set to crew the mission for a weeklong stay at the International Space Station, Suni Williams and Butch Wilmore, have been in preflight quarantine but returned to Houston on May 10 to spend time with their families, Boeing said last week.
“NASA will share more details once we have a clearer path forward,” the space agency said in its latest statement.
Boeing’s historic goals
The Crew Flight Test is a decade in the making — the culmination of Boeing’s efforts to develop a spacecraft worthy of ferrying astronauts to and from the International Space Station under NASA’s commercial program.
The launch would mark only the sixth maiden voyage of a crewed spacecraft in US history, NASA Administrator Bill Nelson noted in a news conference earlier this month.
“It started with Mercury, then with Gemini, then with Apollo, the space shuttle, then (SpaceX’s) Dragon — and now Starliner,” he said.
Boeing designed the Starliner to rival SpaceX’s prolific Crew Dragon capsule and expand US options for ferrying astronauts to the space station.
On board, Williams will also make history as the first woman to embark on such a mission.
A rocky start
Development hang-ups, test flight problems and other costly setbacks have slowed Starliner’s path to the launchpad. Meanwhile, Boeing’s rival under NASA’s commercial crew program — SpaceX — has become the go-to transportation provider for the space agency’s astronauts.
Williams and Wilmore were already in their seats aboard the Starliner capsule May 6 when engineers found an issue and halted the launch.
The United Launch Alliance team,which builds the Atlas V rocket, identified a pressure regulation valve on a liquid oxygen tank that needed replacing.The valve has since been replaced, but the latest issue with the helium leak on the Boeing spacecraft that sits atop the rockethas causedfurther delay.
If the spacecraft does launch next week as planned, it and the astronauts inside will break away from the Atlas V rocket after reaching orbit, as Starliner begins firing its own engines. The vehicle will likely spend more than 24 hours gradually making its way to the space station.
Williams and Wilmore are set to spend about a week at the orbiting laboratory, joining the seven astronauts and cosmonauts already on board, while the Starliner remains docked outside.
The history-making crew will then return home aboard the same Starliner capsule, which is expected to parachute to a landing at one of several designated locations across the southwestern United States.
(Copyright (c) 2024 CNN. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)
Join our Newsletter for the latest news right to your inbox
