Rail deliveries of Boeing 737 MAX fuselages from Spirit AeroSystems to Boeing’s final assembly facility in Renton slowed in March 2026, according to BNP Paribas Equity Research.
The firm counted 38 fuselages transported from Spirit’s Wichita base through March, slightly below Boeing’s target production rate of 42 per month. A BNP Paribas spokesperson noted that while the data indicates production trends over time, it may not align with Boeing’s monthly figures.
In February 2026, analysis showed 40 fuselages moved by rail, equivalent to the 42-per-month target given the shorter month. Boeing reported delivering 51 commercial aircraft that month, including 43 737 MAX jets.
Boeing recently raised its 737 production rate to 42 per month after the FAA lifted a cap of 38 imposed in early 2024 following the Alaska Airlines door plug incident.
On March 10, 2026, Boeing identified a wiring issue, pausing ticketing and deliveries for repairs, with Katie Ringgold, vice president and general manager for the 737 program, confirming the halt. The impact on March final assembly remains unclear.
BNP Paribas also tracked 94 Dreamlifter flights in March, suggesting 787 Dreamliner production near Boeing’s target of eight per month.