Posted on 11/27/2018 9:25:37 PM PST by Freedom of Speech Wins
Black box data from the Lion Air jet that crashed in October reveals the pilots struggled to fight the plane's malfunctioning safety system from takeoff to the moment it nose-dived into the Java Sea, killing all 189 people on board.
https://abcnews.go.com/Politics/lion-air-pilots-battled-doomed-jets-computerized-safety/story?id=59449273
(Excerpt) Read more at abcnews.go.com ...
I think that the main question is why didn’t the pilots know about that automatic system and how to override it?
Not big on safety over ride systems. I have never seen one created by a programmer or designer who could anticipate every malfunction or even enough to make it statistically better than an alert trained operator.
Not nearly the same scale but I’ve spent all day trying to defeat all the safety interlocks on a JCB backhoe that would not start. I finally figured out the wiring diagram enough to just wire around the mess.
They would of had to known how to override it. I’m sure that’s the first thing taught when checking out on these planes.
Yes, but Boeing did not document the system and no one prepared them for what it would do. Someone seriously screwed up.
My question is could one of the problems with the safety system be that the override didn’t work?
I suspect there are a huge number of pilots around the world who are fine at normal take offs and landings but who don’t know what to do if something unusual happens.
The pilots should have known how to quickly override this problem
Thank You for Posting this.
FYI PING Miss J
Every commercial pilot has to go through a simulator series to be certified on a type. This includes emergencies.
This is the principal matter facing Boeing.
Still, the planes aren’t grounded: Obviously they’re safe to fly if the pilots know procedures (that was Boeing’s action in the wake of the crash, to push out manuals). More needs to be revealed about this, but it looks like Boeing was negligent in not properly training the pilots.
“The pilots should have known how to quickly override this problem”
With flying it is one thing to know but another to practice the emergencies. The practice helps with the adrenaline kicks in and clouds your thinking.
LOL I used to service JD Flog course equipment. After attending a Training Class for a week I was agast at how they wired through and bypassed so many things. And NOT the way a Normal Person would do it...
Then there was the GM A/C Compressor that worked when the Ground was bypassed. I finally traced it back to the ECM for the car controled the Ground for the A/C compressor. Car ran fine but to fix the A/C was to replace the ECM. I found a Schematic of the ECM and that was the only device that was controlled by that Circuit in the ECM, Nothing else.
I have to believe that there is an Engineer H€!! that when they die they have to spend eternity working on the stuff they played “connect the dots” on the CAD Machine. I have a list of a few Dozen for them to get started with.
Early fly-by-wire systems talked out triple redundancy and voting to detect a failure.
It seems here that we had a safety system that relied on a single AOA indicator and no visual indicator to the pilot - just a computer action with lack of documentation...
Have all the 737 MAX Jets been grounded yet?
“I think that the main question is why didn’t the pilots know about that automatic system and how to override it?”
When things do not make sense on a computerized flight system turn it off and go back to the “steam gauges’ that rarely lie to you.
Pretty amazing.
Just wait until self-driving cars infest the roads. What fun that will be!
Why did the computer think the plane was stalling? Was there a piece of tape over one of the pitot tubes or something?
I think that the main question is why didn’t the pilots know about that automatic system and how to override it?
^ This There’s an agenda here trying to pin this on Boeing. At least with a 737 there is a pilot in command override, some Airbusses, not so much.
To be clear it seems the “system” did exactly what it was designed to do based on the erroneous input from the sensor. The larger issue in the article appears that the pilot didn’t know about the safety system AND didn’t know to or how to override it. Instead she just fought with the computer while flying in to the water. I think very similar to Air France. Probably one of the incidents that led to the system design. For my money it’s a mechanical failure on the sensor and a training issue on the pilot.
My limited knowledge of this case suggests to me that Boeing,or one of their contractors,has some serious explaining to do here.
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