The launch would be intended to offset strong sales of the Airbus (EADSF) A321neo.
Boeing's response, the 737 MAX 10, would close the gap between the 178-220 seat 737-9, and the 185-240 seat A321neo, which controls the high-end of a market for narrowbody jets worth $2 trillion over 20 years.
"Boeing is actively engaged in discussions with customers about the 737 MAX 10X," a Boeing spokesman said. "No decision has been made on the airplane and any discussion on timing of a possible launch would be speculative."
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