3 ms·
> Also, the airspeed, altitude and flight director pitch bar values from the left side noted deviating from the corresponding right side values. The left side
by linuxftw 8y ago
> Also, the airspeed, altitude and flight director pitch bar values from the left side noted deviating from the corresponding right side values. The left side values were lower than the right side values until near the end of the recording
Hmm. Seems not just faulty AoA sensors? Perhaps some major malfunction in the flight computer? I've felt this entire time there's been a rush to claim 'faulty AoA sensors' because 'sensors' are known to fail, and it's an easy scapegoat.
My question is, does the flight recorder have raw inputs from the sensor, or just what the flight computer is reporting from the sensor? Seems like the latter.
- rootusrootus 8y agoBlaming the sensors seems pretty plausible, because the expected failure rate of that sensor is roughly 1:100000 and there have been about a quarter million 737-MAX flights since the plane was introduced.
- linuxftw 8y agoBut I just quoted 3 other sensors were reading off so...?
- jellicle 8y agoThe problem is all those other things are CALCULATED values off the AoA sensor. Literally everything depends on a single tube which is known to get clogged with ice, bugs etc. So for the 737 Max, a single clogged AoA sensor causes all these things immediately and simultaneously: -- all your airspeed and altitude readouts go haywire, at least on one side of the cockpit -- a bunch of alarms start going off and a bunch of lights start flashing, each indicating a different problem -- your control stick starts shaking -- a little-documented system immediately commands the nose straight down into the ground, and keeps commanding it until turned off (but turning it off effectively prevents you from counteracting the nose down command) Good luck.