U.S. regulators said Monday they will hold certification of Boeing's long-delayed 737 MAX 10 until a newly disclosed flight-management software issue is resolved, and investors answered by cutting the planemaker's shares more than six percent into the close.
What the FAA put on hold
Federal Aviation Administration Administrator Bryan Bedford told reporters the agency will delay the MAX 10 until officials are satisfied the software problem is not an unresolved safety risk. He declined to put a clock on the pause, saying only that the delay lasts until the review is complete. The MAX 10 is the largest member of Boeing's best-selling single-aisle family and has already spent years waiting for final approval. A hold at this stage matters because airlines and investors had been treating certification as imminent after years of rebuilding after the earlier MAX grounding.
The software problem behind the hold
Boeing disclosed over the weekend that certain 737 MAX aircraft running newer flight-management computer software could leave pilots without automated vertical guidance in a specific missed-approach or go-around sequence. The company said it had already briefed operators, reinforced existing pilot procedures, and is working on a permanent software fix. Bedford said the software comes from supplier GE Aerospace and suggested a correction could move faster than usual because of the attention on the case, though he would not choose among days, weeks, or months. He also stressed that pilots retained control in the scenarios under review, drawing a contrast with the undisclosed automatic flight-control software tied to the 2018 and 2019 MAX crashes.
Why the stock sold off
Boeing shares dropped about 6.3 percent on Monday as traders priced in more calendar risk for the MAX 10 and possible knock-on effects for related deliveries. The jet is central to Boeing's effort to claw back single-aisle share from Airbus and to unlock cash from a large backlog. United Airlines said it is not accepting deliveries of aircraft with the software version under review. Alaska Airlines said it is working with Boeing and the FAA while the issue is evaluated. WestJet, which operates some jets on the reviewed software, said it has seen no in-service events and does not treat the matter as an immediate safety concern, citing training and standard procedures.
What markets watch next
The near-term questions are how long the Corrective Action Review Board process runs, how quickly GE and Boeing can field a software correction, and whether the review also slows early deliveries of the recently certified MAX 7, which uses related software. For equity investors, Monday's move was a reminder that Boeing's recovery still hinges on certification cadence as much as production rates. For airlines waiting on the biggest MAX variant, every week of delay pushes capacity plans and replacement schedules further out. Until the FAA says it is satisfied, the MAX 10 stays on hold and the planemaker's shares remain sensitive to every update from Washington and Everett.
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