At the time that Warrior One was delivered to Southwest, the carrier was operating three 737 models: the -300, -500, and -700 variants ... 341 jets are the smaller 737-700 model.

Following the MAX grounding in March 2019, Southwest went into the pandemic only operating -700s and -800s. It had a larger 737-700 fleet of 500 aircraft fitted in a 143-seat layout, compared to a ...

Last year, two Southwest Airlines 737 Max jets lost engines ... Replacing the earlier engine that powers the prior 737 NG model, the LEAP has a much bigger fan to add fuel efficiency.