Current:Home > MyBoeing Starliner launch delayed to at least May 17 for Atlas 5 rocket repair -USAMarket
Boeing Starliner launch delayed to at least May 17 for Atlas 5 rocket repair
View
Date:2025-04-14 08:22:28
After analyzing data following a launch scrub Monday, United Launch Alliance managers decided to haul the Atlas 5 rocket carrying Boeing's Starliner astronaut ferry ship back to its processing facility to replace a suspect valve, delaying another launch try to at least May 17, NASA said in a blog post Tuesday.
The new "no-earlier-than" launch target from Florida's Cape Canaveral Space Force Station — 6:16 p.m. EDT a week from Friday — will give engineers more time to carry out the valve repair while setting up a rendezvous with the International Space Station that fits into the U.S. Eastern Range launch schedule, which coordinates all rocket flights from the East Coast.
The Starliner, Boeing's long-delayed answer to SpaceX's Crew Dragon spacecraft, was grounded Monday just two hours before its planned launch on its first piloted test flight to the space station. On board were NASA astronauts Barry "Butch" Wilmore and Sunita Williams.
The culprit: a pressure relief valve in the rocket's Centaur upper stage liquid oxygen plumbing that failed to seat properly during the final stages of propellant loading. The valve repeatedly "chattered" as it attempted to seal, rapidly opening and closing so fast engineers at the launch pad reported an audible hum.
ULA engineers could have carried out a procedure to force the valve in place and likely would have done so for a normal satellite launch. But conservative flight rules in place for the Starliner flight ruled out any changes to the "fueled state" of the rocket while the astronauts were on board. As a result, the launch was scrubbed.
The valve in question was designed to "self regulate," opening and closing as needed to bleed off gaseous oxygen buildups in the Centaur's liquid oxygen tank. It was certified for 200,000 open-close cycles.
"The oscillating behavior of the valve during prelaunch operations ultimately resulted in mission teams calling a launch scrub on May 6," NASA said in a blog post. "After the ground and flight crew safely egressed from Space Launch Complex-41, the ULA team successfully commanded the valve closed and the oscillations were temporarily dampened.
"The oscillations then re-occurred twice during fuel removal operations. After evaluating the valve history, data signatures from the launch attempt and assessing the risks relative to continued use, the ULA team determined the valve exceeded its qualification and mission managers agreed to remove and replace the valve."
The ULA team plans to haul the Atlas 5 and its mobile launch platform back to the nearby Vertical Integration Facility on Wednesday. After the valve is replaced and tested, the rocket will be moved back to the pad for normal pre-launch preparations.
In the wake of the space shuttle's retirement, NASA funded development of two independently designed, built and operated crew transport craft, awarding a $4.2 billion contract to Boeing for its Starliner and a $2.6 billion contract to SpaceX for the company's Crew Dragon ferry ship.
The Starliner is years behind schedule after a series of technical problems that have cost Boeing more than $1 billion to correct. In the meantime, SpaceX's Crew Dragon has carried 50 astronauts, cosmonauts and civilians into orbit in 13 flights, 12 of them to the space station.
While Boeing has been under intense scrutiny in recent months because of problems with its 737 airliners, the Starliner program, while behind schedule, is a separate operation. The launch delay was not the result of any problem with Boeing hardware.
- In:
- Spacewalk
- International Space Station
- Space
- NASA
Bill Harwood has been covering the U.S. space program full-time since 1984, first as Cape Canaveral bureau chief for United Press International and now as a consultant for CBS News.
TwitterveryGood! (49)
Related
- Meta donates $1 million to Trump’s inauguration fund
- New York City’s mayor gets baptized in jail by Rev. Al Sharpton on Good Friday
- HGTV’s Chelsea Houska and Cole DeBoer Reveal the Secret to Their Strong AF Marriage
- Ariana Madix Announces Bombshell Next Career Move: Host of Love Island USA
- B.A. Parker is learning the banjo
- Georgia House and Senate showcase contrasting priorities as 2024 session ends
- Truck driver in fatal Texas school bus crash arrested Friday; admitted drug use before wreck, police say
- Love Lives of Selling Sunset: Where Chelsea Lazkani, Christine Quinn & More Stand
- Intellectuals vs. The Internet
- Well-known politician shot dead while fleeing masked gunmen, Bahamas police say
Ranking
- New Mexico governor seeks funding to recycle fracking water, expand preschool, treat mental health
- HGTV’s Chelsea Houska and Cole DeBoer Reveal the Secret to Their Strong AF Marriage
- Powerball drawing nears $935 million jackpot that has been growing for months
- UConn's Geno Auriemma stands by pick: Paige Bueckers best in the game over Caitlin Clark
- Could Bill Belichick, Robert Kraft reunite? Maybe in Pro Football Hall of Fame's 2026 class
- Rebel Wilson lost her virginity at 35. That's nothing to be ashamed about.
- Rebel Wilson lost her virginity at 35. That's nothing to be ashamed about.
- Lawsuit accuses Special Olympics Maine founder of grooming, sexually abusing boy
Recommendation
Could your smelly farts help science?
Could tugboats have helped avert the bridge collapse tragedy in Baltimore?
New Jersey youth wrestling coach sentenced to more than 7 years in child sex abuse images case
New trial denied for ‘Rust’ armorer convicted in fatal shooting of cinematographer by Alec Baldwin
Don't let hackers fool you with a 'scam
Connecticut will try to do what nobody has done in March Madness: Stop Illinois star Terrence Shannon
Jets land star pass rusher Haason Reddick in trade with Eagles, marking latest splashy move
LSU star and Baltimore native Angel Reese on bridge collapse: 'I'm praying for Baltimore'