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-   -   B737MAX Recertification - Archive (https://www.flyertalk.com/forum/united-airlines-mileageplus/2031779-b737max-recertification-archive.html)

EmailKid May 2, 2019 1:48 pm


Originally Posted by jsloan (Post 31060861)
.....

A quick Google search shows about 4.5 million worldwide deaths due to injury in 2017 (the last year with data on the chart I used). The number of fatalities in airline crashes is orders of magnitude smaller than that, regardless of the specific airframe.

.......

Interesting if you use another (partial) graph from your link:

Cardiovascular diseases 31.8%
Cancers 17.08%
(snip)

Road incidents 2.22%
Kidney disease 2.2%
Tuberculosis 2.12%
HIV/AIDS 1.71%
Suicide 1.42%
Malaria 1.11%
Homicide 0.72%
Terrorism 0.06% (in 2016)
Natural disasters 0.02

It is amazing how concerned the nation is about terrorism and natural disasters, yet Road Events have a much higher mortality. Never mind Heart (Cardiovascular) disease.

But yes, it is a "massive" singe event death count that gets the news.

What is that Spock* said: you humans see a single death as tragedy and mass deaths as statistic.

*paraphrasing Spock from memory from original Star Trek

DenverBrian May 2, 2019 3:19 pm


Originally Posted by EmailKid (Post 31060917)
What is that Spock* said: you humans see a single death as tragedy and mass deaths as statistic.

*paraphrasing Spock from memory from original Star Trek

The actual quote is: "“I've noticed that about your people, Doctor. You find it easier to understand the death of one than the death of a million."

The tragedy/statistic quote is often attributed to Stalin.

See? Facts. I can do facts. :D :D :D

BF263533 May 2, 2019 4:29 pm

When the DC 10s were falling out of the sky back around 1979 the news coverage was a lot less with no 24 hour news cycle and no internet like today. The problems once identified were like poorly designed cargo door latches and short cut maintenance procedures. There were far more airplane accidents back then. Untied had to rely on 747s to pick up the traffic to Hawaii.

MCAS and the overall design of the MAX remain a point of debate.

Why have the MAX "feel" like the NG if it could cause the nose to pitch down and increase the risk of death?

Remove MCAS and certify MAX to fly as a MAX and train pilots to fly the MAX without all the "feel" ad ons.

VegasGambler May 2, 2019 6:47 pm


Originally Posted by BF263533 (Post 31061381)
Remove MCAS and certify MAX to fly as a MAX and train pilots to fly the MAX without all the "feel" ad ons.

This is a great point. Regardless if how good MCAS is, it can be switched off. If the plane can't be certified as safe without it then it shouldn't be certified at all.

Productivity May 2, 2019 11:40 pm


Originally Posted by EmailKid (Post 31060851)
Gotta disagree .....

IMHO you represent (not picking on you, just kind of follow up to the example) the educated public. Ignorant flying public will soon forget this, if they ever knew about it @:-)

When visiting my friend in Dallas, he said he didn't notice that there aren't any MAX aircraft directly over his house - he lives about two miles southeast of DAL's 31L and if the wind blows out of the north the left engine is directly over the house.

When I asked if he heard of the crashes, it was news to him. A lot of people don't read FT and don't watch the evening news, so if it's not in their newsfeed @:-)

I completely disagree here. My mother in law who couldn’t name any plane has regularly independently raised the Max to meas a safety concern. My employer (who employs well over 10s of thousands) sent an email to he whole company banning us from flying it (pre grounding).

What at I have found amazing about this whole sorry scenario is people who never knew what Boeing was, let alone an airplane model consistently now know this particular model and have decided it is a death trap (right
y or wrongly).


Originally Posted by BF263533 (Post 31061381)
Why have the MAX "feel" like the NG if it could cause the nose to pitch down and increase the risk of death?

Remove MCAS and certify MAX to fly as a MAX and train pilots to fly the MAX without all the "feel" ad ons.

This comes back to people saying greed over safety. If you take MCAS out, the MAX is fine, but it is not the same plane requiring increased training and undermining the business case to purchase the MAX.

mduell May 3, 2019 10:32 am


Originally Posted by VegasGambler (Post 31061679)
This is a great point. Regardless if how good MCAS is, it can be switched off. If the plane can't be certified as safe without it then it shouldn't be certified at all.

This "logic" does not in any way reflect how contemporary certification works, nor make any sense.

You can turn off the transponder in flight, but you can't certify an airliner without one.

DenverBrian May 3, 2019 11:01 am


Originally Posted by mduell (Post 31063635)
This "logic" does not in any way reflect how contemporary certification works, nor make any sense.

You can turn off the transponder in flight, but you can't certify an airliner without one.

I've never heard of a transponder being on or off resulting in a plan flying into the ground killing everyone on board.

wxguy May 3, 2019 11:10 am

Brief quote from a long article in Aviation Week and Space Technology:

The FAA is targeting May 23 for a meeting of global regulators to discuss its analysis of the MCAS changes, the agency confirmed first to Aviation Week (see page 24). While that gathering will be part of a concerted effort to build global consensus, it will have no bearing on when the FAA clears the MAX for U.S. operations. Progress on the updates suggests a late May or early June approval.

LarryJ May 3, 2019 1:20 pm


Originally Posted by DenverBrian (Post 31063740)
I've never heard of a transponder being on or off resulting in a crash killing everyone on board.

I don't intend to be argumentative, but it has happened. Took down a B737-800.

https://en.wikipedia.org/wiki/Gol_Tr...os_Flight_1907

The transponder on the Embraer Legacy 600 business jet was accidentally turned off so TCAS didn't give either airplane a warning prior to the collision. The Legacy landed safely; the 737's 154 passengers and crew were lost.

mduell May 3, 2019 2:27 pm


Originally Posted by DenverBrian (Post 31063740)
I've never heard of a transponder being on or off resulting in a crash killing everyone on board.


Originally Posted by LarryJ (Post 31064165)
I don't intend to be argumentative, but it has happened. Took down a B737-800.

https://en.wikipedia.org/wiki/Gol_Tr...os_Flight_1907

The transponder on the Embraer Legacy 600 business jet was accidentally turned off so TCAS didn't give either airplane a warning prior to the collision. The Legacy landed safely; the 737's 154 passengers and crew were lost.

https://en.wikipedia.org/wiki/Hughes_Airwest_Flight_706 too

DenverBrian May 3, 2019 4:13 pm


Originally Posted by LarryJ (Post 31064165)
I don't intend to be argumentative, but it has happened. Took down a B737-800.

https://en.wikipedia.org/wiki/Gol_Tr...os_Flight_1907

The transponder on the Embraer Legacy 600 business jet was accidentally turned off so TCAS didn't give either airplane a warning prior to the collision. The Legacy landed safely; the 737's 154 passengers and crew were lost.

Boy, you guys are twisting in pretzels to justify stuff. From the article you quoted:


...the NTSB determined that both flight crews acted properly and were placed on a collision course by ATC, deeming the Legacy pilots' disabling of their TCAS system to be only a contributing factor rather than a direct cause.

FlyngSvyr May 3, 2019 4:25 pm


Originally Posted by DenverBrian (Post 31064660)
Boy, you guys are twisting in pretzels to justify stuff. From the article you quoted:

Not sure what "stuff" you think they are trying to justify. You made a statement

Originally Posted by DenverBrian (Post 31063740)
I've never heard of a transponder being on or off resulting in a crash killing everyone on board.

and they were obliged to educate you :)

DenverBrian May 3, 2019 4:30 pm


Originally Posted by FlyngSvyr (Post 31064691)
Not sure what "stuff" you think they are trying to justify. You made a statement

and they were obliged to educate you :)

By providing two examples of the transponder per se NOT causing planes to fly into the ground, killing all aboard. @:-)

FlyngSvyr May 3, 2019 4:46 pm


Originally Posted by DenverBrian (Post 31064708)
By providing two examples of the transponder per se NOT causing planes to fly into the ground, killing all aboard. @:-)

Well, transponders do not have any function that affect flight control as in the MCAS sitatuation. So, one being on/off would not make the plane "fly into the ground" by itself. HOWEVER, the fact that a transponder was accidentally turned off absolutely was a contributing factor in a middair collision where all souls on board were lost on a commercial airliner.

So again, I will point out that you made a statement and 2 posters were obliged to educate you with 2 examples. I don't think there is any ulterior motive other than to enlighten.

fly18725 May 3, 2019 4:47 pm


Originally Posted by DenverBrian (Post 31064708)
By providing two examples of the transponder per se NOT causing planes to fly into the ground, killing all aboard. @:-)

An opinion has been established that MCAS “killed” 350 odd people and the 737 MAX is a fundamentally flawed product. It’s apparent that facts aren’t going to change that view, regardless of what the FAA concludes and how United chooses to return the aircraft to service.

That’s fine.

You’re entitled to your opinion.

However, there are other participants in this forum that are interested in factual discussion, perhaps because we plan to fly on the MAX in the future.


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