News for hackers. Stuff that matters.

A comment on Preliminary conclusion MCAS misfired in Ethiopian's 737 max crash. Parent comment

Re:Preliminary conclusion MCAS misfired in Ethiopian's 737 m... by kristofferR on Friday March 29, 2019 @06:37AM (#19520450)
They did, but the redundancy was a premium add-on feature.
[ Parent | on HN ]
Re:Preliminary conclusion MCAS misfired in Ethiopian's 737 m... by Moru on Friday March 29, 2019 @06:41AM (#19520460)
No, the extra sensor was add-on feature. It still wasn't redundant for the MCAS, just an indicator for the pilots.
[ Parent | on HN ]
Re:Preliminary conclusion MCAS misfired in Ethiopian's 737 m... by mhandley on Friday March 29, 2019 @06:53AM (#19520520)
All 737s have two AoA sensors - they're used for several purposes, not just MCAS. Originally MCAS used only one of the two sensors, though it alternated which one with each flight. The optional features were an AoA disagree indicator, and the AoA data itself being displayed on the cockpit displays. Having either optional feature didn't change the fact that MCAS only used one sensor.
[ Parent | on HN ]
Re:Preliminary conclusion MCAS misfired in Ethiopian's 737 m... by kristofferR on Friday March 29, 2019 @06:48AM (#19520502)
Wow, that's even worse...
[ Parent | on HN ]