"I'd like to have some numbers and some scale of the materiality of this, whether it affects deliveries, cash flow and all the rest," Vertical Research Partners analyst Robert Stallard said. "It's unfortunately just one of many issues that Boeing seems to stumble into on a regular basis." The biggest question is whether Boeing will update its 2023 financial guidance, which calls for it to deliver at least 400 737 MAXs and generate $3 billion to $5 billion in free cash flow this year. Both goals may still be achievable, said J.P. Morgan analyst Seth Seifman. "Boeing gave a fairly wide range for the amount of cash flow they expect for the year, and there are a lot of levers to impact cash throughout the company," said Seifman, who said it would be "surprising" if the company were unable to meet its goal.