Boeing Completes New Anti-Ice System for 737 MAX Aircraft

Boeing has finalized the design and engineering of a new engine anti-ice system for its 737 MAX aircraft. This development, as reported by Aviation Week, is a pivotal step towards certifying the delayed 737 MAX 7 and 737 MAX 10 variants, which have faced significant holdups primarily due to the previous anti-ice system’s limitations. Boeing is now collaborating with the Federal Aviation Administration (FAA) to establish a comprehensive certification plan for the new system, which will be included in future deliveries and retrofitted to existing models.

The redesigned engine anti-ice system aims to prevent ice accumulation during critical flight conditions. Specifically, the new system directs air into the inlet cowl, a critical function during icing scenarios. Initial testing indicated potential thermal damage risks to the composite nacelle structure during prolonged operation, necessitating a thorough redesign process. Boeing has invested considerable time and resources into refining this solution, which has delayed the certification of the 737 MAX 7 and 737 MAX 10 for several years.

Significance of the Certification Process

Speaking at the Dubai Airshow, Boeing Commercial Airplanes President and CEO Stephanie Pope highlighted the extensive effort involved in the redesign, stating, “We’ve spent thousands of hours getting that design done. Now it’s defining the certification plan, getting the FAA to accept that certification plan.” The certification of these new variants is crucial for Boeing, as the company has been working under operational limitations for its existing 737 MAX 8 and 737 MAX 9 models while awaiting approval for the new system.

The announcement coincided with the ongoing Dubai Airshow 2025, a key industry event where aircraft manufacturers seek substantial orders. Although the redesign primarily affects the 737 MAX 7 and 737 MAX 10, it does not significantly impact the currently produced 737 MAX 8 and 737 MAX 9 models. Following FAA review, the agency will either approve the new system or request modifications prior to granting certification.

Market Implications for Boeing

The 737 MAX 10 is particularly vital for Boeing’s competitiveness in the narrowbody market, especially against the Airbus A321neo, which has garnered over 7,000 orders since its launch. The 737 MAX 10 has already received more than 1,200 orders, and its entry into service is anticipated in 2027, with Canadian airline WestJet among its customers. The successful certification will not only help fulfill existing contracts but also position Boeing more favorably against its rival.

While the 737 MAX 7 has seen limited orders beyond its primary customer, Southwest Airlines, the 737 MAX 10 is expected to generate higher profit margins and could potentially attract additional orders once operational. Boeing currently aims to ramp up production to 42 737 MAX jets per month, which underscores the urgency of the certification process.

In summary, the completion of the new engine anti-ice system represents a significant advancement for Boeing, paving the way for the certification and entry into service of the 737 MAX 7 and 737 MAX 10. This development is essential for Boeing to strengthen its position in the competitive aircraft market and meet the demands of its customers.