Boeing Slashes Starliner Missions After Flawed Astronaut Flight
NASA and Boeing restructure commercial crew contract, reducing guaranteed flights from six to four and delaying the next launch to 2026, ceding more ground to SpaceX.
Boeing’s troubled Starliner spacecraft program has been dealt another significant blow, as NASA officially reduced the number of future crewed missions following a litany of technical failures during its first astronaut flight earlier this year. The decision intensifies the aerospace giant’s struggles in the commercial space race, further solidifying rival SpaceX’s dominance.
In a joint announcement on Monday, NASA and Boeing confirmed they have modified their Commercial Crew Program contract, cutting the guaranteed astronaut flights for Starliner from six to just four. The agreement keeps two additional missions as future options, but the revision marks a formal acknowledgment of the deep-seated issues plaguing the program. As a result, Starliner's next flight, now slated for no earlier than April 2026, will be an uncrewed cargo mission to validate extensive system upgrades.
Shares of Boeing (NYSE: BA) were trading down approximately 0.5% at $178.79 in Monday trading, as investors absorbed the latest setback for the company’s high-profile space venture. The program's persistent delays and performance issues have already cost Boeing dearly, with total losses on the fixed-price contract now exceeding $2 billion, according to company disclosures and reports on its budget overruns.
The contract amendment is a direct consequence of the perilous journey of the Starliner's first crewed mission in June 2024. During that flight, astronauts Butch Wilmore and Suni Williams experienced several critical malfunctions. The spacecraft suffered from five separate failures in its reaction control system (RCS) thrusters as it approached the International Space Station (ISS). Mission controllers managed to recover four of the thrusters, but one remained offline for the duration of the docking procedure.
More alarmingly, the capsule was beset by multiple helium leaks in its propulsion system. One leak was known before launch, but at least two others developed in flight, creating what mission managers described as a 'complex' and challenging situation. Subsequent investigations identified that Teflon seals, designed to manage propellant flow, eroded under high heat, contributing to both the thruster failures and the helium pressurization issues.
These technical failures not only delayed the astronauts' return to Earth but also cast serious doubt on the spacecraft's reliability and safety. The mission's problems were so significant that NASA ultimately opted to bring Wilmore and Williams home aboard a SpaceX Crew Dragon capsule, a stark illustration of Starliner's shortcomings and its competitor's reliability.
This decision to curtail the program deals a heavy blow to Boeing's efforts to establish itself as a second reliable provider of astronaut transportation for NASA, a key strategic goal to break SpaceX's monopoly. The original 2014 Commercial Crew contracts awarded $4.2 billion to Boeing and just $2.6 billion to SpaceX, with the expectation that both would provide redundant, safe access to the ISS. However, while SpaceX has successfully flown over a dozen crewed missions since 2020, Boeing has struggled to get its program off the ground.
The restructuring of Starliner's flight manifest underscores the widening gap. With Starliner sidelined until at least 2026 for an uncrewed test, NASA has already moved to reassign its 2025 crew rotation missions exclusively to SpaceX, further entrenching Elon Musk's company as the agency's primary partner for human spaceflight.
For Boeing, the financial and reputational damage continues to mount. The fixed-price nature of the NASA contract means the company is responsible for all cost overruns, turning a once-prestigious program into a significant financial drain. The ongoing issues with Starliner compound the challenges facing Boeing's defense and space division, which has been working to restore confidence after quality control lapses in its commercial aviation unit. The path forward for Starliner remains uncertain, with the program now facing a critical uncrewed test in 2026 to prove it has resolved the fundamental flaws that jeopardized its first astronaut crew.