(Replying to PARENT post)

Blaming the user is a pernicious problem in UX engineering, especially when a feature is introduced not for the actual users, but the executives making the purchasing decisions.

MCAS was an economics driven decision by Boeing to be able to sell it as a "no cost" upgrade to existing 737 fleets. "You get all this and you don't need to retrain your people"

The entire concept of the 737 MAX was flawed, marketing an inherently unstable aircraft with a patched undocumented system to control that instability. Then, incredibly, making the safety indicators an optional extra was criminal.

The FAA is also liable for regulatory capture and handing over its responsibilities the actual organization it is supposed to be supervising.

Ultimately, it's an example of what happens when MBA execs, convinced that they can run "any business" take over from a rigourous engineering culture. The Harvard (and other) Business Schools have a lot to be blamed for.

๐Ÿ‘คrswail๐Ÿ•‘6y๐Ÿ”ผ0๐Ÿ—จ๏ธ0

(Replying to PARENT post)

> marketing an inherently unstable aircraft

The 737 Max is not an inherently unstable aircraft and to say so grossly misunderstands the term and what MCAS was doing.

MCAS existed to make an inherently stable aircraft handle in the same was as previous 737 generations. Design changes had forced the addition of this system in order to retain the same type rating because those design changes caused the aircraft to handle differently to previous generations.

MCAS was about keeping the same type rating and the same handling characteristics. It had absolutely nothing whatsoever to do with 'inherent instability' - the 737 Max is an inherently stable aircraft without MCAS.

Continuing to spread misinformation about what MCAS is and the 737 Max stability is detrimental to the discussion.

EDIT - There is clearly a lot of misunderstand about the terms 'stable' and 'unstable'. These has a defined meaning in aircraft handling. I encourage you to educate yourselves on the term, on what stability actually is in relation to this discussion.

https://www.boldmethod.com/learn-to-fly/aerodynamics/3-types...

The 737 Max is a stable aircraft. The 737 Max without MCAS activated is a stable aircraft. It is an inherently stable design.

The 737 Max can and was flown without MCAS activated (even by the same aircraft as crashed, the pilots of the previous flight pulled the stabiliser cut out switches and went to manual trim control).

It is a stable aircraft.

๐Ÿ‘คPuffinBlue๐Ÿ•‘6y๐Ÿ”ผ0๐Ÿ—จ๏ธ0

(Replying to PARENT post)

    > ...  it's an example of what happens when MBA execs, convinced that they can run "any business" take over from a rigourous engineering culture. The Harvard (and other) Business Schools have a lot to be blamed for.
Sadly, the culture problems brought by bean-counters are the very last thing that will see the light of day. They're really the "long story" root cause problem here. It's the same kind of mentality that lead to the Challenger disaster, new building collapses in China and countless other less dramatic failures of big projects and systems.

Don't hold your breath for anyone to held accountable, don't expect that business will learn a lesson from this.

๐Ÿ‘คcrispyambulance๐Ÿ•‘6y๐Ÿ”ผ0๐Ÿ—จ๏ธ0

(Replying to PARENT post)

> The Harvard (and other) Business Schools have a lot to be blamed for

Is this documented? Did MBAs from HBS flood the FAA? And how would that lead to a plane falling out of the sky?

I'm with you on the general gist of your comment with regards to HBS - but I'd be careful about starting a witch hunt.

๐Ÿ‘คanonu๐Ÿ•‘6y๐Ÿ”ผ0๐Ÿ—จ๏ธ0

(Replying to PARENT post)

This went unnoticed but, do we know whether the executives or those who made the decisions here were all MBA graduates? I am an MBA student and we do case studies on exactly these kinds of issues and how the correct course of action, but ethically and financially is to do the right thing. Maybe others disagree but this comment definitely stood out to me.
๐Ÿ‘คericmay๐Ÿ•‘6y๐Ÿ”ผ0๐Ÿ—จ๏ธ0

(Replying to PARENT post)

I'm not sure why we're even having this discussion, even a non-technical layperson reading a description of how MCAS was supposed to work can immediately realize it's a horribly flawed and unsafe design. You don't need any experience with aviation or engineering, that's how awful the design is.
๐Ÿ‘คsituational87๐Ÿ•‘6y๐Ÿ”ผ0๐Ÿ—จ๏ธ0

(Replying to PARENT post)

> such a pernicious and deadly design

Yes, MCAS is a pernicious and deadly design.

Equally, Boeing's corporate governance and FAA's regulation and oversight are also "pernicious and deadly".

All must be fixed before this aircraft flies again.

๐Ÿ‘คpanarky๐Ÿ•‘6y๐Ÿ”ผ0๐Ÿ—จ๏ธ0

(Replying to PARENT post)

I'm not sure why you get so worked up?

From what I can tell flying is far too safe for its own good. Seriously:

Flying is regulated to ridiculous level of safety. At current levels, each marginal dollar spent on flight safety would do much better being spent on driving safety or more radically, preventing deaths from malaria.

If we apply unequal dollar amounts to how much we are willing to pay for each life saved in different areas of life, we are saving fewer lives than we could.

๐Ÿ‘คeru๐Ÿ•‘6y๐Ÿ”ผ0๐Ÿ—จ๏ธ0

(Replying to PARENT post)

> Blaming the user is a pernicious problem in UX engineering

I've been around computers since well before it was called UX, and since UX? trust me, I never blame users, I definitely blame UX.

we need to bring back UI.

๐Ÿ‘คstatusquoantefa๐Ÿ•‘6y๐Ÿ”ผ0๐Ÿ—จ๏ธ0

(Replying to PARENT post)

All jetliners are unstable, which is why they have a yaw damper as required equipment since the 707.

https://en.wikipedia.org/wiki/Yaw_damper

๐Ÿ‘คWalterBright๐Ÿ•‘6y๐Ÿ”ผ0๐Ÿ—จ๏ธ0

(Replying to PARENT post)

If you haven't seen it you should check out John Oliver's bit on Harvard's MBA ethics pledge from when he was on The Daily Show. Here's a link that isnt region locked - http://dailybail.com/home/the-daily-show-enlists-a-prison-co...
๐Ÿ‘คrosege๐Ÿ•‘6y๐Ÿ”ผ0๐Ÿ—จ๏ธ0