[SystemSafety] "FAA chief '100% confident' of 737 MAX safety as flights to resume"

[Kinalzyk, Dietmar AVL/DE]

Olwen
 I made a Problem based learning session with my students, that's why I studied the causes intensively.
MCAS was introduced to correct the nose up tendency of Boing 737 Max after lifting up the bigger engines (avoid hazard to stall). Bigger engines have less fuel consumption. This was necessary because Airbus did it before but without change of the relation of wings to engine.
Here is a demonstration video:
https://youtu.be/H2tuKiiznsY

If you want to read the Aircraft Accident Investigation Report of KOMITE NASIONAL KESELAMATAN TRANSPORTASI REPUBLIC OF INDONESIA, Boeing 737-8 (MAX); PK-LQP
Tanjung Karawang, West Java, Republic of Indonesia:
https://www.flightradar24.com/blog/wp-content/uploads/2019/10/JT610-PK-LQP-Final-Report.pdf

It is amazing how many causes are coming together to this disaster.

Best regards

Dietmar KINALZYK
Principal Development Engineer
Product Safety & NON-PT Safety
dietmar.kinalzyk at avl.com
T: +49 941 50272546
M: +49 152 59963271

AVL Software and Functions GmbH
Im Gewerbepark B29, 93059 Regensburg
Germany
www.avl-functions.com







-----Ursprüngliche Nachricht-----
Von: systemsafety <systemsafety-bounces at lists.techfak.uni-bielefeld.de> Im Auftrag von Olwen Morgan
Gesendet: Montag, 30. November 2020 19:56
An: systemsafety at lists.techfak.uni-bielefeld.de
Betreff: Re: [SystemSafety] "FAA chief '100% confident' of 737 MAX safety as flights to resume"


On 30/11/2020 18:18, Peter Bernard Ladkin wrote:
>
>
> On 2020-11-30 18:08 , Olwen Morgan wrote:
>
>> If the 737 MAX is not unstable at certain speeds and AoAs, then why 
>> does it need MCAS?
>>
>> PBL note that I'm not being deliberately obtuse here.
>
> My view: yes, you are.
>
Your response does not surprise me.

It's as if I'd said that the emperor has no clothes and you retorted that I had ignored the sum total of his ear-muffs, corn-plasters and jock-strap.


The question stands: If the 737 MAX is not unstable at certain speeds and AoAs, then why does it need MCAS?


olwen


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