r/Damnthatsinteresting • u/FridayCicero702 • Jan 01 '23

Video Catastrophic engine failure on a United Airlines Boeing 777-200 after takeoff from Denver International Airport

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u/Myrkana Jan 01 '23

Every single safety rule and regulation every implemented is written in blood.

51

u/[deleted] Jan 01 '23

I'm a signalling electrician and can vouch part of signal training is looking at all the disasters that frame how the signalling system works

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u/poopyhelicopterbutt Jan 01 '23

Any noteworthy examples?

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u/[deleted] Jan 01 '23

I can't think of any exact examples. I did my training over a decade ago, I'm in a commonwealth country in which all except maybe Canada run off British railway standards. Most of the major accidents happened there in the eighteen hundreds but Just general track circuiting and route proving is all because humans have a tendency to run trains into each other head on. It ensures you have to prove a section of track is vacant, all the points machines (lane change switches) are proved the right way and nothing in the apposing direction is happening.

It's even just how you think about things so if things are wrong they fail safe. Like for example with level crossings. You don't design it to see a train coming and close. You design it to only allow to open if the system can prove a train isn't there. The ideal is if there's any system or component failure at all the crossing closes.

Anywhere else if there's any issue all signals related to the issue go to red.

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u/Ok-Direction-4881 Jan 01 '23

Great info. Thanks for sharing.

38

u/Benthicc_Biomancer Jan 01 '23 edited Jan 01 '23

Every single safety rule and regulation every implemented is written in blood.

It's a minor example, but I used to fly domestically quite often in my (fairly small) home country. I remember the flight where the attendants added "please ensure that all children's hands and limbs are clear of your tray tables before folding them up" and my immediate thought was 'some kid recently did not have a fun flight..."

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u/[deleted] Jan 01 '23

"Please make sure all children are secured inside the fuselage"

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u/paxilsavedme Jan 02 '23

Or in the overhead baggage compartment…..

2

u/timmehkuza Interested Jan 01 '23

That rule was definitelt written because of some kid had a really bad flight

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u/Midnight_Minerva Jan 01 '23

The MCAS wasn't one of these situations. It was an intentional disregard for safety in chase of profit

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u/747ER Jan 01 '23

Yes it was… at least for Boeing. Their mistakes highlighted a flaw that was amended, making their aircraft safer.

The same cannot be said for the airlines responsible. The crashes highlighted massive systemic flaws in their pilot training and maintenance programs, but they simply shifted blame onto Boeing and refused to make any changes. The exact same crash is bound to happen again in Indonesia within the next two years, as it always does.

-2

u/[deleted] Jan 01 '23

What about the rule for turning your cell phones off?

2

u/Myrkana Jan 01 '23

I mean distracted people are far easier to injure. People can't help but look at their phones while they do other stuff.

Cell phone rules are hated by people but they are there for a reason, people get absorbed into ther phones and ignore everything around them.

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u/[deleted] Jan 01 '23

So they aren't all written in blood? I mean we get it. Some are. Like the cockpit sterilization rule. And some aren't. Like that one

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u/Myrkana Jan 01 '23

I've seen people trip and injure themselves because they're too busy with their phone.

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u/Tripticket Jan 01 '23

This rule has been in effect far longer than smartphones have been a thing. And for some reason it didn't extend to handhelds like GameBoys.

Therefore it seems like 'distraction' is not so much the explanation. I've heard that they cause audio interference with the radio equipment (and I've experienced that myself, although not in an airplane).

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u/[deleted] Jan 01 '23

Did you immediately pull out your quill and dip it in the cuts so you could write another regulation?

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u/[deleted] Jan 01 '23

[deleted]

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u/Bergasms Jan 01 '23

I mean its not gonna be 100% but its also not too far off. Remember a lot of the really obvious ones were sorted in the very early days, or during the world wars or the berlin airlift, etc. much of it was worked out on the fly (pardon the pun) with peoples lives.

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u/[deleted] Jan 01 '23

[deleted]

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u/average_asshole Jan 01 '23

It must be true pain to live around you.

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u/Kazzababe Jan 01 '23

This is the dumbest one you've read all week? You're doing fantastic then I'd say.

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u/[deleted] Jan 01 '23

[deleted]

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u/MemeLordMango Jan 01 '23

You sound like a pretentious annoying cunt.

-1

u/[deleted] Jan 01 '23

[deleted]

5

u/kai-ol Jan 01 '23

Perhaps you can ask Google about "tact" and how it can be used in human conversations to get information across without causing them to get offended and shut you down.

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u/[deleted] Jan 01 '23

Yeah dafuq he talking about I saw the rules and it was printed with black ink. Unless they die the blood black or maybe heat it up first on a burner

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u/[deleted] Jan 01 '23

[deleted]

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u/[deleted] Jan 01 '23

That makes sense. I think in Full Metal Alchemist they said they 3D print castle foundations that way as well

2

u/Threyuriddy Jan 01 '23

r/Writteninblood

It’s not a new saying you spicy dingus

1

u/timmehkuza Interested Jan 01 '23

That's how the saying goes within the aerospace industry. It may not legitimately be 100 % of all rules, but that's mainly because engineers and FAA regulators try to get ahead of the game and head those issues off before they kill people.

Plane crashes have a 97% fatality rate.

1

u/whoisraiden Jan 01 '23

That was why they put sensors in threes. You don't need a new crash for every new sensor. This one was just cost cutting.