After Starliner made a picture-perfect landing, Stich told reporters that the spacecraft did well during its return flight. “It was a bullseye landing,” he said. “It’s really great to get the spacecraft back….” He said while he and others on the team felt happy about the successful landing, “there’s a piece of us, all of us, that we wish it would’ve been the way we had planned it” with astronauts on board when it landed…
Now that Starliner is back on the ground, Boeing and NASA will further analyze the thrusters to see if modifying the spacecraft or how it’s flown could keep the thrusters from overheating in the future.
Futurism explains why NASA wanted an uncrewed Starliner flight:
While attempting to duplicate the issue at NASA’s White Sands Test Facility in New Mexico, engineers eventually found what appeared to be the smoking gun, as SpaceNews’ Jeff Foust details in a detailed new breakdown of the timeline. A Teflon seal in a valve known as a “poppet” expanded as it was being heated by the nearby thrusters, significantly constraining the flow of the oxidizer — a disturbing finding, because it greatly degraded the thrusters’ performance.
Worse, without being able to perfectly replicate and analyze the issue in the near vacuum of space, engineers weren’t entirely sure how the issue was actually playing out in orbit… While engineers found that the thrusters had returned to a more regular shape after being fired in space, they were worried that similar deformations might take place during prolonged de-orbit firings.
A lot was on the line. Without perfect control over the thrusters, NASA became worried that the spacecraft could careen out of control. “For me, one of the really important factors is that we just don’t know how much we can use the thrusters on the way back home before we encounter a problem,” NASA associate administrator for space operations Ken Bowersox said, as quoted by SpaceNews.
Now CBS News reports that “the road ahead is far from clear” for Starliner:
The service module was jettisoned as planned before re-entry, burning up in the atmosphere, and engineers will not be able to examine the hardware to pin down exactly what caused the helium leaks and degraded thruster performance during the ship’s rendezvous with the station. Instead, they will face more data analysis, tests and potential redesigns expected to delay the next flight, with or without astronauts aboard, to late next year at the earliest.
“Even though it was necessary to return the spacecraft uncrewed, NASA and Boeing learned an incredible amount about Starliner in the most extreme environment possible,” Ken Bowersox, space operations director at NASA Headquarters, said in a statement. “NASA looks forward to our continued work with the Boeing team to proceed toward certification of Starliner for crew rotation missions to the space station,” Bowersox added. In any case, the successful landing was a shot in the arm for Boeing engineers and managers, who insisted the Starliner could have safely brought Wilmore and Williams back to Earth.
Steve Stich, manager of NASA’s commercial crew program, agreed that if the crew had been on board “it would have been a safe, successful landing.”
Two details about the astronauts now waiting for their February return flight from the International Space Station.
NPR reports that “in case the space station suffers an emergency that forces an evacuation before that capsule arrives, the station’s crew had to jerry-rig two extra seats in a different SpaceX spacecraft that’s currently docked there.”
Space.com reports that when the uncrewed Starliner returned, “Among the gear that it carried home were the ‘Boeing Blue’ spacesuits that Williams and Wilmore wore aboard the capsule. The astronauts have no need for them now. “The suits are not compatible,” Steve Stich, manager of NASA’s Commercial Crew Program, said during a press conference on Wednesday (Sept. 4). “So the Starliner suits would not work in Dragon, and vice versa.”
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