[kirykl]

Southwest has added enhanced AOA indicators to its Max fleet as a result [0].

Lion Air didn't even have the basic (optional) AOA Disagree alert[1]

[0]https://theaircurrent.com/aviation-safety/southwest-airlines...

[1]https://www.reuters.com/article/us-indonesia-crash-boeing-ao...

[CydeWeys]

It makes you wonder why such a seemingly important alert is optional. Cars these days can't come without seat belts, brakes, ABS, traction control, ESC, and more, but apparently seemingly essential safety features on planes are optional??