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FAA orders grounding of more than 170 Boeing 737 Max 9s

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Re: FAA orders grounding of more than 170 Boeing 737 Max 9s

#172
post #159

Earlier quoted context omitted.

Two of those are manufacturing mistakes, and it seems likely the door one is as well. Not that that helps the passengers, but they're not systemic design flaws. That anti-icing system is deranged, though. They effectively installed a timed detonator on the engines and want a safety exemption for it.

Ah you’re right. They’re not design flaws, just manufacturing issues, so sign me up for the first flight when the max flies again… People falling out the sky because the wing falls off because someone forgot to bolt it on aren’t going to care if it’s a design issue or a manufacturing issue. Boeing is doing both, so the blame lies with them either way.

I absolutely agree. I meant it as a comparison to issues like the infamous MCAS, which was wrong on purpose on all 737 Max 8s everywhere.

There isn't a change in outcome between the flaws, but I think the difference between a mistake and a known issue that was left in while the company tried to change regulations to allow it, all for a tiny cut to the BOM, is worth noting.

Re: FAA orders grounding of more than 170 Boeing 737 Max 9s

#173

I certainly know nothing about planes yet from the reading I've done on the 737 Max I'm a bit uneasy that these planes are still flying. I usually subscribe to the mentality that something that had a significant issue that was fixed is overly scrutinized and thus becomes safe but in this case it seems like the decision-making involved in the making of this plane from the start was flawed, such that I'm not sure patch…

The FAA will never ban it because politically its untenable in the US, the only thing that could kill the Max off would be if another big regulator such as EASA refused to let the Max into their airspace.

They could refuse to certify any new MAX planes. Grandfathering only existing planes if they are thoroughly and independently inspected.

Re: FAA orders grounding of more than 170 Boeing 737 Max 9s

#174
post #91

Ways in which you can experience an unexpected cabin decompression to the next world...Or join the mile-high never-come-back club, on a Boeing 737 MAX... 1- Loose bolts: "Boeing Urges Airlines to Check for Loose Bolt in newer 737 MAX Aircraft" - https://www.european-views.com/2023/12/boeing-urges-airlines... 2- Leave the anti-icing system on for more than 5 min after non-icing conditions: "Boeing still hasn't fixed t…

Two of those are manufacturing mistakes, and it seems likely the door one is as well. Not that that helps the passengers, but they're not systemic design flaws. That anti-icing system is deranged, though. They effectively installed a timed detonator on the engines and want a safety exemption for it.

A manufacturing mistake which makes it into service is a failure of QA and testing systems design. (At least above a certain threshold which varies depending on the industry etc. etc.)

Re: FAA orders grounding of more than 170 Boeing 737 Max 9s

#175

Earlier quoted context omitted.

Yeah and their practices have spread into big tech too.

Can you elaborate?

Probably they refer to Tesla, Full Self Driving feature but the small print explains that is not "full self driving" the name is just an aspiration, the advertisement statement are also false because are also aspirations etc. AFAIK there is soem kind of investigation about the mode this feature was advertised and I expect that sooner or later the people that were tricked to pay for a FSD would demand their money back since the promises were not kept. About their safety, the human must pay attention all the time so we can judge the safety of the software because the human intervenes when the situation is to unsafe and prevents the crashes, with the exception when the humans do not pay attention and the car kills/injures them.(any idea what happen with that software guy killed in a Tesla? did the family pursue the cause in justice or they got money to give up?)

Re: FAA orders grounding of more than 170 Boeing 737 Max 9s

#177
post #91

Ways in which you can experience an unexpected cabin decompression to the next world...Or join the mile-high never-come-back club, on a Boeing 737 MAX... 1- Loose bolts: "Boeing Urges Airlines to Check for Loose Bolt in newer 737 MAX Aircraft" - https://www.european-views.com/2023/12/boeing-urges-airlines... 2- Leave the anti-icing system on for more than 5 min after non-icing conditions: "Boeing still hasn't fixed t…

Two of those are manufacturing mistakes, and it seems likely the door one is as well. Not that that helps the passengers, but they're not systemic design flaws. That anti-icing system is deranged, though. They effectively installed a timed detonator on the engines and want a safety exemption for it.

The troubling thing to me here over and above these issues is if they (Boeing) think some of these things are ok to the point that they ask for an exemption, what else is there that would fail rigorous safety checks but has been deemed ok by management, and has not come to light yet? We may never know until it’s too late.

Re: FAA orders grounding of more than 170 Boeing 737 Max 9s

#178

Earlier quoted context omitted.

You don't have to keep the management from the company you've bought.

Well clearly the McD people were more skilled politicians.

This is exactly it. The skilled politicians are the reason why the company failed in the first place. They then take over the acquiring company from within like a virus and destroy that next. Rule of thumb: If a company is failing and you purchase it, fire everybody. Either the culture or the people are poison, and they will infect you.

Re: FAA orders grounding of more than 170 Boeing 737 Max 9s

#179
What's the back of the envelope on whether the 737 Max is more dangerous than driving?

1,300 aircraft have been built since the first started flying in 2017, with two deadly crashes. I don't know how many miles those have accumulated, but presumably it's of order 4k miles per day per aircraft, and maybe 3 years (1000 days) of flying to date per aircraft on average, giving a very rough estimate of a few billion miles? So maybe a deadly crash per billion miles, in comparison to a bit over one deadly crash per 100M miles for cars.

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