3 ms·
"Boeing's software fix, announced today, is to compare readings from both angle-of-attack sensors and disable MCAS if they disagree significantly. The obvious q
by melling 8y ago
"Boeing's software fix, announced today, is to compare readings from both angle-of-attack sensors and disable MCAS if they disagree significantly. The obvious question is why they didn't do this in the first place?"
Because you had to pay for the second sensor and the disagree light.
https://www.nytimes.com/2019/03/21/business/boeing-safety-features-charge.html https://www.nytimes.com/2019/03/21/business/boeing-safety-fe...
- cjbprime 8y agoNo, the second sensor is on every plane. The option was just a light that wasn't hooked up to anything else. The light's a red herring here.
- magduf 8y agoThe second sensor is on every plane, true, but the MCAS doesn't use it. The light just tells the pilot when the two sensors disagree. The criminally negligent thing is having MCAS only use input from a single sensor, especially when there's a second sensor already there.