3 ms·
They did, but the redundancy was a premium add-on feature.
by kristofferR 8y ago
They did, but the redundancy was a premium add-on feature.
- Moru 8y agoNo, the extra sensor was add-on feature. It still wasn't redundant for the MCAS, just an indicator for the pilots.
- kristofferR 8y agoWow, that's even worse...
- mhandley 8y agoAll 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.