• Boeing said it will further delay the launch of two new 737 Max variants to 2026.
• The delays come as the planemaker wrestles with a potential issue regarding the plane's deicing.
• "We're going to have to back up and make some additional design changes," said CEO Kelly Ortberg.

A pair of upcoming variants of Boeing's most popular plane, the 737 Max have been further delayed to 2026, CEO Kelly Ortberg confirmed in an earnings call Tuesday.

Achieving certification for the Max 7 and Max 10 will be a key benchmark for Ortberg, who is approaching one year at the helm and has been leading Boeing's turnaround.

The company had initially hoped the Max 7, the shortest version of the flagship narrow-body jet, would be certified in 2022.

However, it has been constrained by work on the engine anti-ice system, a key safety feature that prevents ice from building up during cold weather conditions and at high altitude.

"Work on the solution is taking longer than expected, and we now are expecting certification in 2026," Ortberg said on the second-quarter earnings call.

The delay was first reported last week by industry publication The Air Current.

Back in 2023, the Federal Aviation Administration warned that the system could cause the engine to overheat — and potentially result in debris breaking off and hitting the plane.

Boeing then requested an exemption, saying an engine breakup is "extremely improbable," but withdrew this request in January 2024 as it faced a safety crisis in the wake of the Alaska Airlines blowout.

Figuring out a solution for the complex system has been far from straightforward.

Ortberg told investors on Tuesday that Boeing has been exploring different design paths.

"We found some issues with the design implementation we had, so we're going to have to back up and make some additional design changes to get through that de-icing requirement," he said.

"Basically, the engineering designs have not yielded in the time frame that we were anticipating, and so we still have work to do."

His comments came after Ryanair's earnings call last week, when CEO Michael O'Leary said Boeing's commercial airplanes chief wrote to confirm the airline's first 15 Max 10s would be delivered in the spring of 2027.

A Boeing spokesperson said: "We are maturing a technical solution that includes design updates. The modifications would be included in the baseline certification of the 737-7 and 737-10. We are finalizing our analysis and will present the information to the FAA. We will continue to work under their rigorous oversight to meet safety and regulatory requirements."

Meanwhile, Boeing is also working to certify the 777X — a twin-engine wide-body jet, also years behind schedule. It's now expected to enter service in 2026 as well.

"Flight testing continues with no new technical issues to report," Ortberg said during the earnings call.

Boeing reported quarterly revenues above expectations of $22.7 billion, with a net loss of $612 million.

It's been ramping up production of its cash-cow 737 Max, reaching the 38-a-month limit imposed by the FAA.

Its share price fell about 4% on Tuesday, but is still up more than 30% since the start of the year.

Welcome to Edition 8.04 of the Rocket Report! The Pentagon's Golden Dome missile defense shield will be a lot of things. Along with new sensors, command and control systems, and satellites, Golden Dome will require a lot of rockets. The pieces of the Golden Dome architecture operating in orbit will ride to space on commercial launch vehicles. And Golden Dome's space-based interceptors will essentially be designed as flying fuel tanks with rocket engines. This shouldn't be overlooked, and that's why we include a couple of entries discussing Golden Dome in this week's Rocket Report.

As always, we welcome reader submissions. If you don't want to miss an issue, please subscribe using the box below (the form will not appear on AMP-enabled versions of the site). Each report will include information on small-, medium-, and heavy-lift rockets, as well as a quick look ahead at the next three launches on the calendar.

Space-based interceptors are a real challenge. The newly installed head of the Pentagon's Golden Dome missile defense shield knows the clock is ticking to show President Donald Trump some results before the end of his term in the White House, Ars reports. Gen. Michael Guetlein identified command-and-control and the development of space-based interceptors as two of the most pressing technical challenges for Golden Dome. He believes the command-and-control problem can be "overcome in pretty short order." The space-based interceptor piece of the architecture is a different story.

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On Wednesday, acting FAA Administrator Chris Rocheleau told the House Appropriations Committee that the Federal Aviation Administration plans to replace its aging air traffic control systems, which still rely on floppy disks and Windows 95 computers, Tom's Hardware reports. The agency has issued a Request For Information to gather proposals from companies willing to tackle the massive infrastructure overhaul.

"The whole idea is to replace the system. No more floppy disks or paper strips," Rocheleau said during the committee hearing. Transportation Secretary Sean Duffy called the project "the most important infrastructure project that we've had in this country for decades," describing it as a bipartisan priority.

Most air traffic control towers and facilities across the US currently operate with technology that seems frozen in the 20th century, although that isn't necessarily a bad thing—when it works. Some controllers currently use paper strips to track aircraft movements and transfer data between systems using floppy disks, while their computers run Microsoft's Windows 95 operating system, which launched in 1995.

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