Ethiopian 737 MAX 8 crash
03-11-2019, 01:39 PM
#104
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03-11-2019, 02:36 PM
#106
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Originally Posted by F4E Mx
Are 2 airframes lost out of 350 delivered real enough for you? That is a .6% loss rate right there.
Originally Posted by astaz
Perhaps you are referring to the 737 MAX-8, not the 737-800. Different planes.
Very rough SWAG: 300 MAX 8 delivered, most but not all in service.
https://en.wikipedia.org/wiki/List_o...and_deliveries
03-11-2019, 02:59 PM
#107
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Originally Posted by Peacock
With bad AOA indications, could it be triggering a stall warning (and MCAS) while showing accurate airspeed, which leads the crew to believe the airspeed was unreliable?
03-11-2019, 03:04 PM
#108
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Looks like Boeing is playing Tic Tac Toe. How many 737 crashes does it take before they have enough Xs on the world map to fix this flaw?
If these crashes are because of a faulty AOA sensor and an automatic flight control input of countering a perceived stall, it is an unsafe and poorly designed system. Just imagine you rotate on takeoff and suddenly the airplane pitches down because of a faulty AOA sensor. If Lockheed had this on C141s I would have splashed in the Indian Ocean when I had a faulty AOA on rotation.
This is very bad for Boeing.
If these crashes are because of a faulty AOA sensor and an automatic flight control input of countering a perceived stall, it is an unsafe and poorly designed system. Just imagine you rotate on takeoff and suddenly the airplane pitches down because of a faulty AOA sensor. If Lockheed had this on C141s I would have splashed in the Indian Ocean when I had a faulty AOA on rotation.
This is very bad for Boeing.
03-11-2019, 03:06 PM
#109
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Originally Posted by Rahlifer
I’m just a regional dude so I’m not at all familiar with the 737 at all. Does the MAX employ traditional AOA vanes or smart probes for AOA information? From what I’ve been able to ascertain from my google-fu, only one faulty AOA sensor is enough to trigger the system which is basically similar to a stick pusher that can not be manually overridden. It does seem risky to have a single point failure that can lead to severe pitch controllability issues.
I can understand how the lion air guys got in trouble, not knowing what they were dealing with. At this point I would think all MAX pilots would be spring-loaded on this issue. If not yesterday, they should be today.
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