[#] Boeing's 'Starliner' Also Experienced an Issue on Its Return to Earth
robot(spnet, 1) — All
2025-02-09 13:22:01


Friday the Orlando Sentinel covered NASA's 2024 mission-safety report from the Aerospace Safety Advisory Panel (formed in 1968). The report "commended the agency's handling of last year's beleaguered Boeing's Starliner mission [prioritizing astronaut safety], but revealed yet another issue found during the flight and questioned the agency's needs for the spacecraft in the future..."

[The report] stated that it was unclear how a decision was made to waive a failure tolerance requirement on some of the thrusters without flight or qualification data to justify the decision. "These examples illustrate the panel's concern that, absent role clarity, risk management choices could unintentionally devolve to contractors, whose interests may not fully align with NASA's," the report warned...

It also revealed that in addition to the thruster and leak issues on the propulsion module driving the decision to fly home without astronauts, Starliner had a new issue as it made its way back to Earth. "Overall, Starliner performed well across all major systems in the undock, deorbit, and landing sequences; however, an additional mono propellant thruster failure was discovered in the crew module — distinct from the failures in the service module experienced during orbit," the report stated. "Had the crew been aboard, this would have significantly increased the risk during reentry, confirming the wisdom of the decision."

As far as Starliner's path to certification, the ASAP report said it would continue to monitor several unresolved issues with thrusters and seek information on how NASA and Boeing plan to get the spacecraft certified. "While the thruster issues have received considerable attention, the panel has previously noted other Starliner issues that require resolution prior to certification," it stated. That includes a battery redesign and work to strengthen the landing airbag apparatus. "Beyond these technical matters, schedule and budget pose substantial challenges to Starliner certification," the report added...
"Until the Starliner certification plan is well understood, it remains unclear as to whether a second provider will be available prior to the end of the ISS's operational life [in 2030]," the report stated.

The report "also suggested that NASA immediately adapt next-generation extravehicular mobility units, or EVUs," reports ExecutiveGov, "as current space suits astronauts use for operations outside the ISS are now beyond their design life."

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