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Old 05-15-2019, 06:27 AM
  #622  
JohnBurke
Disinterested Third Party
 
Joined APC: Jun 2012
Posts: 6,023
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Originally Posted by Dyrek2 View Post
https://www.cnn.com/2019/05/15/us/bo...ots/index.html

This certainly doesn't help Boeing's case!
Of course it won't, because some are too ignorant to know that the article is far off base, misleading, and inaccurate.

From the article cited (https://www.cnn.com/2019/05/15/us/bo...s/index.html):

Preliminary reports of the crashes implicate the MCAS and faulty sensor readings
No, they didn't. In fact, one who knows what he's talking about and reads the report understands something very different.

But that computerized stability program, the MCAS, received faulty sensor readings in both the Lion Air and Ethiopian jets, and repeatedly pushed the planes' noses downward, and ultimately into steep dives. The pilots' attempts to overcome it were unsuccessful.
Nothing "pushed the planes noses' downward" and we know that MCAS moved the stab trim at the rate of only 1/3 unit per second, max 2.4 units, and could be stopped at any time with standard procedures, and that keeping speed in check eliminated controllability issues. What happened in each case was the crews failure to fly the airplane.

As the Boeing representative noted, the procedure didn't differ with or without MCAS, and the standard procedure for runaway or unwanted pitch trim should have been applied (and was applied in the case of Ethiopian). Again, the procedure worked, or would have, if only the crew had flown the aircraft instead of allowing it to accelerate to destruction.
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