Southwest and United reject Boeing's new 737 MAX software

Southwest and United have asked Boeing to deliver new 737 MAX jets with an earlier software version after a glitch was found in an automated navigation function. The issue can disable some autopilot features after a missed approach; Boeing plans a fix by early 2028.

• Southwest and United want earlier software on incoming 737 MAX jets
• The glitch appears after a missed approach and route change
• Boeing notified operators in late August; a fix is planned for early 2028
• Cirium lists 2,422 MAX 8 and MAX 9 aircraft in service worldwide