Boeing has officially secured FAA type certification for its long-delayed 737 MAX 10, a landmark achievement that clears the American planemaker to deliver the largest member of its best-selling narrowbody family into commercial service. The approval arrived as an amended type certificate on October 20, 2026, ending a certification campaign that stretched across more than five years, survived repeated schedule slips, and demanded fresh technical fixes across several aircraft systems. The announcement was delivered by US Transportation Secretary Sean Duffy during a visit to Boeing’s new 737 MAX production line in Everett, Washington, a setting that underlined how tightly the milestone is now bound to manufacturing capacity and airline delivery commitments.
The MAX 10 was once expected to begin reaching airlines in 2020. Instead, its path to the type certificate was reshaped by additional testing requirements and heightened regulatory scrutiny following the two fatal Boeing 737 MAX 8 accidents in 2018 and 2019, along with several high-profile incidents in the early 2020s that kept the entire 737 program under intense FAA oversight. With final approval in hand, Boeing now turns to converting a substantial order book into deliveries, with entry into commercial service expected in early 2027.
Boeing 737 MAX 10 Certification Concludes After Years of Delays
The MAX 10 is the longest and highest-capacity variant in the 737 MAX family, measuring 143 feet and eight inches, or 43.8 meters, with a maximum seating capacity of 230 passengers. That stretched fuselage gives airlines meaningfully more passenger capacity while preserving the operational commonality that has made the 737 such a durable tool in airline fleets. Commenting on the achievement, Stephanie Pope, president and CEO of Boeing Commercial Airplanes, said: “Completing the certification program clears the path for us to deliver a Boeing airplane that will set a new standard in commercial aviation. The 737-10 offers greater capacity, longer range and the best seat economics in its class, a platform that will create more value and opportunities for airlines around the world.”
Engine Anti-Ice Fix Resolved a Key Barrier to MAX 10 Approval
Several technical problems contributed to the MAX 10’s extended timeline. Chief among them was the 737 MAX’s engine anti-ice system, a concern that held up certification of both the Boeing 737 MAX 7 and MAX 10. Late last year, Boeing finally introduced a redesigned engine anti-ice system that resolved the risk of potential thermal damage to the engine during prolonged use of the anti-ice function, which allowed the aircraft to continue through the certification process. Boeing also completed testing on an enhanced angle-of-attack system designed to simplify flight deck indications and prevent erroneous warnings, along with a fix to a software glitch that once threatened to push certification into 2027. Those remedies, individually modest, collectively shaped the timeline of the entire program.
Five Years, 976 Flights and 2,060 Flight Hours to FAA Approval
From its first flight on June 18, 2021, the MAX 10’s certification process spanned more than five years, 976 flights and over 2,060 flight hours. The final major procedural step came on Friday, October 16, when Boeing and the FAA held a Type Certification Board meeting to review the aircraft ahead of the anticipated approval. That meeting was reported to have concluded successfully, clearing the way for Boeing to submit its Project Statement of Completion before formal certification was signed early this week. Sean Duffy framed the decision in straightforward terms, concluding that “after extensive safety reviews, including thousands of hours of test flights, the team at the FAA is ready to approve this critical aircraft for sale.”
MAX 10 Certification Is a Major Win for Boeing and Its Airline Customers
For Boeing, the 737 MAX 10 accounts for over 30% of its order backlog for Boeing 737 family aircraft, totaling 1,555 aircraft across 30 customers. With a typical two-class seating capacity of 185 to 210 passengers and a range of up to 3,100 nautical miles, or 5,740 kilometers, the MAX 10 is positioned as a workhorse on high-density medium-haul routes while offering the best per-seat operating economics of any narrowbody aircraft on the market. Its appeal is strongest among carriers that already operate extensive 737 fleets, where commonality with other 737 types reduces training and maintenance costs.
Certification is equally important for the factory floor. In July 2026, Boeing opened a new 737 MAX final assembly line in Everett, the very location where the certification announcement was made. This line is the fourth 737 MAX production plant and the first outside Renton, Washington, and it lifts Boeing’s capacity to as many as 52 aircraft per month, with further increases possible in the future.
Top 5 Largest 737 MAX 10 Customers
| Airline Operator | Firm 737 MAX 10 Commitment |
|---|---|
| United Airlines | 167 |
| Ryanair | 150 |
| American Airlines | 115 |
| Delta Air Lines | 100 |
| Pegasus Airlines | 100 |
Come 2027, WestJet will become the MAX 10’s launch customer when it becomes the first airline to receive and operate the new variant, assuming Transport Canada’s certification proceeds smoothly. Seattle-based Alaska Airlines plans to receive its first MAX 10 by spring 2027, with hopes to begin passenger operations by mid-May. Across the Atlantic, Ryanair, which holds one of the largest MAX 10 orders for up to 300 aircraft, intends to receive its first 15 aircraft in spring 2027. United Airlines, among the first carriers to order the MAX 10 back in 2017, has since scaled back its ambitions for the variant and now plans to accept 167 aircraft, with many of its earlier orders shifted to the smaller Boeing 737 MAX 9.
All Four 737 MAX Variants Certified, But Software Concerns Remain
With the MAX 10 now certified, all four members of Boeing’s 737 MAX family hold FAA type certification. The MAX 8 and MAX 9 are already in commercial service worldwide, with nearly 2,500 aircraft delivered, while the 737 MAX 7 joined the certified roster less than three months ago. Pope underscored the strategic value of completing the family, adding: “we are delighted to complete the 737 MAX family and provide our customers the most-efficient and flexible single-aisle airplane portfolio in the industry.” The broader portfolio gives Boeing a stronger hand as it competes more aggressively against Airbus and, in particular, the sustained success of the A321neo.
The approval nonetheless arrives amid continuing concern over a software glitch affecting certain versions of the 737 MAX flight management computer. The issue can cause the aircraft’s vertical navigation system to disengage during specific missed-approach scenarios, potentially increasing pilot workload during a critical phase of flight. Regulators have judged it not to pose a safety concern because pilots retain clear control throughout the process, but several airlines, including United Airlines and Southwest Airlines, have said they will not accept aircraft fitted with the problematic software. For Boeing, the immediate test is now operational: moving freshly built MAX 10s through Everett, Transport Canada and other regulatory channels, and onward to WestJet and the broader customer base.
