A Mystery Substance Wreaks Havoc on Flight 780
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- čas přidán 19. 11. 2019
- Lab analysis reveals that a faulty valve on Cathay Pacific Flight 780 is an absorbent polymer, used in refueling trucks to prevent water from getting into the aircraft fuel tanks. So how did it end up in the aircraft?
From the Series: Air Disasters: Deadly Descent bit.ly/2Zzen5a - Zábava
just to know for future viewers it’s salt water from the ocean beside the airport. the salt water destroyed the fuel trucks filter causing powder from the filter to leak into it the valve
Thank you
no, that is not correct at all. The SAP media was allowed to migrate with the fuel because it was degraded (think small crumbles). Degradation of the filter media was caused by having entrained water, encapsulated by FSII (prist), passing through the filters and degrading the polymer. This is only possible with Jet fuel that is pre-mixed with FSII. The fuel industry, once they found this problem, took steps to prevent it. (no more pre-mixed Jet allowed to pass through go/no-go filters)
I was going to guess gallium. But saline corrosion also makes sense.
Incorrect,Water Cannot ge into metal in from the filter Becuase the If it reflects it will just sweat on the metal-_-
ZrRyan Is correct
"How did it get onboard the aircraft?". Um, the filter on the fuel truck failed
Well, technically, the filter worked exactly as intended for salt water. It wasn't intended for salt water.
@@TreddianNo, a filter has one purpose, to filter out impurities. So, no the filter didn't work "technically" or in any other way.
The filters wasn't "intended for salt water"? That's ridiculous. Of course they're intended for salt water. One of the CAR's recommendations was to IMPROVE performance removing salt water, not to add the function. The filter manufacturer told the Civil Aviation authority that the filters passed all of their tests even though it failed each of the CAR's tests.
@@julianfierro7034 Read the fine print on the addendum sticker. "Not intended for use with salt water."
it failed because the workers cleaned the pipes with SAP and sent a pipe inspection pig after it. When the SAP was vacuumed out by the truck it damaged the filter and crushed it. They changed the filter but they did not empty out the truck when they unhooked from the hydrant. The truck drove across the airport to 780 and hooked up and they pumped out the fuel from the truck into the tank not knowing it was contaminated with SAP. The SAP turned the fuel into gel and seized up the engines Engine 2 stalled and was shut down while Engine 1 remained at full power and caught fire when they landed in Hong Kong. today guidelines prohibit SAP from being used in pipeline welding and fuel filters and instead are replaced with a fabric that removes imparities and with bentonite slugs which are used in pipe pigs to flush them out to remove contaminates after welding.
So the flight recorder uses a DVI connector? 😂
That's an ancient 25 pin rs-232 connector? "refers to a standard originally introduced in 1960 for serial communication transmission of data."
Im a manufacturing engineer at Airbus and yes most communication connectors are DVI
Eng 1 or 2 had stalled with the powder and salt
They sould use hdmi much faster
GamesAreAmazing nah DisplayPort is faster
Another Smithsonian video, another cliffhanger...
Maybe if you weren't so poor you'd just subscribe to their services and then you'd see the full hour episode.
I know right...
@@9999AWC be quiet my little pony
Or watch them for free at Facebook.
@@noahthesarcastictd link?
this is the only full episode I could find from the channel itself
Because nobody died in the accident🤣
You have to have the Smithsonian channel to watch the entire episode
I know how it got there construction workers were working on the pipes at the Surabaya airport and flushed a pig through the filter to clean it they also added the compound. When the pig hit the filter it damaged it and the compound got into a truck the crew changed the filter but they did not empty out the truck and the fuel was pumped into the tank and 780 crashed in Hong Kong.
S A L T
@@Alb410 Salt + Pig = Bacon! Bacon brought down the plane!
Indeed surprising...how it mysteriously happened.
Any information is very appreciated where can I find the full documentary on this one kindly help with functional link thank you
Ended up being salt water
No. It didn’t. It ended up being part of the filter material (a super-absorbent polymer much like the stuff used in disposable diapers) from the fuel-pumping truck, which was designed to work with water but because salt-water had contaminated the fuel, the material broke down and made its way into the aircraft’s fuel system.
@@RoadRunnerLaser That's what he means mate, that salt water broke down the polymer. Sorry he wasn't as expressive and big brain as you LOLL
@@jackeldridge1319 - Wow. You should demonstrate your mind-reading skills to the JREF and pick up the prize for proving that paranormal phenomena exist !
@@RoadRunnerLaser Well he said salt water I don't think he needs to say much more considering it is part of the truth. You don't ask for an ethically sourced vegan non GMO Vietnamese beans flat white coffee you ask for a flat white, same deal applies here
@@RoadRunnerLaser anyway whatever I guess you deserve the Nobel peace prize for watching the whole episode wow so smart
Why is it always some error by a person who makes minimum wage?
Because, if they had more training, they wouldn’t be paid minimum wage.. And some people want more money for doing nothing to earn it, despite the fact that it would only make things worse for the economy because they don’t understand how money works..
Because they are beaten into submission by the people who pay them to do the absolute least they can.
Good points but someone should check on this that is not paid 5 bucks a day. It's a fuel system here and then stuff not properly strapped in the cargo hold tommorow. You would think all these rich people would care more about their investments
Another commenter said that it was the saltwater from the nearby ocean that degraded the filter that caused it to get into the fuel. but the polymer absorbs fresh water just fine but with salt water it doesn't.
Manual labor or low skill does not automatically equal minimum wage. Particularly in countries with trade unions that aren't still hamstrung by anti-racketeering laws like the ones in the U.S. In other words these people were, and still are, in all probability paid a solidly middle class wage.
What is the best sensor electronic device that could detect how pure the fuel for boing engine airplane from the dangerous contamination which its should be installed on the refueling truck pump hose. By the way, I am not the engineer for the refuelling truck pump.
do you english bro
0:16 that looks so creepy
3:13 very unusual sound from Airbus
The fuel pump had stalled in the first video
It actually like engine flowing up
Cathay Pacific Flight 780
If the fuel is meant to fill up lots of aircraft, then why was only this particular plane affected? Why didn't a whole bunch of other planes get affected by the fuel contamination?
Looking at the episode, it appears that upgrades were being made to underground fuel area days before the flight, which likely allowed salty groundwater to get into the fuel and affect the filter creating the contamination. My best guess is that it just took time for the contaminated fuel to get to the filter/reach the level of contamination that would affect the flight and this was the first flight that suffered from it. From all appearances, this seems to be a problem no one had foreseen and the fact that the flight managed to land safely and in one piece allowed for the problem to be identified easily. Supposedly the filters have been changed so that such a situation won't happen again.
@@darkraiking680 Thanks DRK. That does make sense. That was a super lucky break that time for sure.
@@southpark4151 Well, not for the flight that had the problem, but in general yeah.
Monster blood
Wait for it...engineers will be on board...on board in the comments section. 🤣
Never stop the investigations...keep making new theories.
Why?
After the fuel is covered with water
In the a350 engine oil is failed
I don’t know 🤷♂️ what is happening with a330
“A Strange white substance”
i thought it was something else
Then it smoking in the engine 1 and 2
this is why i don't like (re-en)acting in documentaries...
One day, I hope an American/Canadian TV show will use a Scouser or a Brummy instead of the usual high class educated Southerner who speaks like Harry Potter
This show is odd, in britain they decided to dub over the narrators words... even though its still english.
@@Alb410 Is this air crash investigation?
NACL
It had no ending stupidly made
Want it
Buy it
Joe
Good try.
It’s not funny anymore
‘Gel like white substance?’ Hmmm
Sounds like a broken filter to me Clem.
It’s brighter here... wait
?
1:54 , you are an investigator and you ask that kind of question? you ought to know fuel system should be clean from the get go..
First
BMW makes cars
BMW makes Rolls Royce
Rolls Royce makes cars
Rolls Royce makes plane engines
Hmm..
BMW made aircraft engines before they made cars, and long before they bought Rolls-Royce. Rolls-Royce built aircraft engines long before they were bought by BMW. BMW 003 jet engine fitted on Me-262 aircraft that fought against Rolls-Royce Merlin powered P-51s and Spitfires.
Worst acting by that woman lol
This show doesn't exactly have a big budget...