Boeing is to offer a 200-seat Max 8 as “a new minor model” of its re-engined narrowbody.
The 200-seat Max 8 is “on track to deliver a 20% more fuel-efficient product than today’s 737NG”, says the airframer.
Extra seats will be accommodated via deployment of the same mid-exit door as on the Max 9, it adds.
The 737-800 can seat 189 in a one-class configuration.
Boeing is deliver the first Max 8 in 2017 and the first Max 9 in 2018, and the 200-seat Max 8 will be available thereafter.
CFM International Leap-1B engines will power the jets.