How A Room With Bad AC Almost Crashed A Passenger Jet | United Airlines Flight 1175
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- Опубликовано: 3 фев 2023
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This is the story of United airlines flight 1175 , on the 13th of february 2018 a huge boeing 777 was to take off from san francisco international airport to hawaiis honolulu international airport. The jet was packed with 378 people on board. The plane took off from sanfrancisco with no issues and it made its way across the pacific ocean with no issues. As the plane was getting near to hawaii the everyone onboard was getting ready for the landing, they were still at 36000 feet and hadn not begun their descent yet. at noon hawaiian time flight ___ was about 40 minutes from landing and that is when the plane was rocked by a huge explosion. The flight crew heard a loud bang and then the plane started shaking. Their EICAS displays lit up with warnings of a compressor stall on engine number right hand engine or engine number two. The bang had disconnected the autopilot and the plane started to yaw to the right. The captain immediately called my controls and took control of the plane righting the plane while he tried to figure out what was happening to his jet. They kept getting an intermittent waring on their consoles about the right hand engine failing. Something catastrophic had happened to the right hand engine and the pilots werent taking any chances, the captain called for the severe engine damage checklist and the first officer started going through the checklist while the captain focused his attention on keeping the massive plane in the sky. Once the engine was shut down the pilots could feel that the vibrations had gone down but they knew that the controllability of the plane was not normal. Now that they had a good handle on the situation the pilots control on the situation the pilots briefed the controllers about what was happening to them and declared an emergency. The captain sent the person the jumpseat into the cabin so that they could have a good idea of what was happening with the right hand engine, the jump seater did not have good news for the captain, he took a video of the engine and showed it to the captain and it showed the engine just swinging from side to side with most of its cowlings missing. I mean this engine was destroyed, the bang that everyone had heard on board now made sense. For whatever reason the right hand engine of the 777 had failed and catastrophically at that. The pilots now needed to get this plane on the ground as soon as possible and their destination of honolulu was indeed the closest airport to them. Since the flight was almost over the pilots did not have to worry about weight being an issue or else they would have to dump some fuel overboard and believe me sometimes that can be an issue. With that the pilots carefully lined the jet up with runway 8R at honolulu, the pilots would be carrying out a visual approach for this landing and soon after that flight 1175 made a safe landing. The interesting thing is that just mere decades ago the 777 or a plane like that would not have been able to make this crossing. You see back in the day the FAA banned planes with fewer than three engines from flying over large bodies of water because jet engines were new and they failed a lot, so the wisdom was that the more number engines you have the better your chances of losing a few engines and making it back alive. And they really loved this rule for example. In 1980 the FAA administrator Lynn helms said this and i quote “It'll be a cold day in hell before I let twins fly long-haul over-water routes”. But just two years later hell started to thaw as the FAA started seriously studying the possibility of letting twins fly long distances over water. Then they relented and let twin engines planes fly over water, but not without any restrictions though, you see each plane had an ETOPS rating, or Extended-range Twin-engine Operational Performance Standards or more colloquially known as engines turn or passengers swim. Its basically the amount of time a plane can fly from a diversion airport. In case of the 777-200 that united was flying that day it has an etops rating of 180 minutes or in other words at all points in its journey it has to be utmost 180 minutes away from a diversion airport so that if something does go wrong with one engine the plane can reach the emergency airport on one engine.
In the case of flight 1175 all that etops preparation came to gether perfectly to get this damage plane back on the ground in one piece, well not one piece but you know what i am saying. Once on the ground they could finally see the extent of the dama 
Наука
From a "cold day in hell" to a "hot day in Hartford".
I saw an interview with the pilot of this aircraft; he said when the engine disintegrated the plane rolled almost to the point where he was considering rolling it all the way over to get it back. He also said that the dead engine was putting so much drag on the airplane that if this it happened farther away from the airport it's very likely they would not have made it
I attended a formal training course on a revolutionary, super expensive, electronic equipment. 19 technicians (21 total) were stuffed into a room the size of a bedroom. The room had no ventilation. We could only open the door. It was hot and the air stank of sweat. To top it off the two instructors forgot to bring the power supply. For four days (8 hours a day) we studied paperwork but we did not touch the equipment, nor saw it operate. We were all given codes saying we were certified technicians. The only thing I remember was how miserable we were.
The technicians came from all over the world. I flew from Hawaii to the headquarters for the training. Other people had flown from Europe and Australia.
The funny thing was my office never got the equipment. The equipment that was bought for Hawaii, was kept at headquarters to show visiting VIPs how fantastic it was.
So impressive that the investigation was able to reveal so much. This is what has always attracted me to aviation, is the extremely high level of no-nonsense professionalism. So much bluffing and posing in other industries, but with aviation, you can't fool nature. You have to get it right.
Safety aside, I bet the inspectors would have liked the room to be cooler, too
Edit: i shouldn't comment halfway zoned out 😅 /edit
Next time, they should invest in shading blinds instead of more AC units...
That's still a safety issue, in my opinion. An inspector who's personally melting in the heat is going to have a hard time properly inspecting anything.
Yes! It can’t have been conducive to remaining sharp and wide awake!
There have been accidents caused by people being physically uncomfortable and so either being distracted or trying to spend as little time as possible in an uncomfortable environment
@@NovemberOrWhatever absolutely. Being squashed and immobile on a long haul flight has resulted in DVT on a number of occasions.
Great video, but one of your major conclusions is categorically wrong. United 1175 did not prove the wisdom and safety of twin engine jets over open water. In fact it came remarkably close to proving the exact opposite. The problem was the ETOPS 180 rating assumed an aerodynamically intact aircraft. With United 1175, just as it had a few months prior with United 329 over Denver, the uncontained engine failure had blasted the cowling off the engine. The no longer streamlined engine became a huge aerodynamic drag on the aircraft. Captain Behnam had to fly 40 minutes with the yoke full over to the left straining his muscles to the point his veins were popping out. His crew had to pretty much pry his hands off the yoke when they landed. They barely made Hawaii, because they could not maintain altitude on 1 engine with the amount of drag the second engine was causing. They were at a slow unstoppable rate of descent. They had to land where they did as they could not climb and had lost enough altitude that they could not clear the mountains on Hawaii to reach an alternate. They had one shot at one runway. They could not go around. They could not climb and they could not circle to another runway as they were bleeding altitude. They landed fast and heavy and just barely managed to brake to a stop.
This is not to criticize the pilots Captain Behnam did an incredible job in what was an absolute worst case situation. His crew performed remarkably. And in some ways this flight also showed the benefit to having the third crew member in the cockpit. They lucked out in that had an observer who was in the process of qualifying on the 777. He was an experienced pilot and gave them an extra set of hands and the ability to send someone back to look at the engines and return with photos and video. So the Captain knew what he was facing.
Juan Brown aka RUclipss blancolirio did an amazing hour long interview with Captain Behnam last year where he talked through the entire incident. It's actually shocking to hear just how crippled the plane was. All the news really mention's is they landed safely at Hawaii. It was apparently much closer to disaster than the news media realized. Of course there was a lot of pressure to sort of soft pedal this one as it was the second such incident to a United 777 within a matter of months. Calling into question all of the Pratt&Witney PW4000-112 engines in the air.
I really suspect that the liberalized rules allowing trans ocean use of twinjets in passenger service are questionable and politically motivated. Fuel economy over safety?
I guess they have lots of liferafts and flotation jackets on board-----
@@davidpowell3347 That's basically what the deal was. The US FAA is in a weird place. It is supposed to both support and encourage and act for the air transportation industry, and regulate and police them. It's two main missions are frequently in conflict. And much as we see with the FDA and CDC falling all over themselves to do whatever big Pharma wants, much of the FAA is firmly captured by the major airlines. What the industry wants the industry gets.
Why would the Captain have the yoke full over to the left for 40 minutes? That is why you require left RUDDER to counteract the yaw. Seems to me if this was the case the spoilers on the left wing were quite extended for 40 minutes which could explain why they were having a problem maintaining altitude. Are you saying the Captain did not know how to handle an engine out?
@@georgeconway4360 I think the massive difference in lift between the two sides would create a roll that can only be counteracted by aileron input, not just with the rudder. As OP mentioned, the plane rolled over dramatically.
@@LuLeBe There should not have been any difference in lift between the two wings based on the damage reported. The damaged engine did not cause a loss of lift but the damaged engine and cowl produced a large amount of drag. This drag caused the right wing to drop and the airplane to turn right. The Captain used full left aileron to correct. Remember they were nearing their destination so they were descending. Since they had been level FL380 they had to descend to their single engine operating altitude even if they had been 1000 nm from landing. That additional drag would require more left rudder than a simple failure of the right engine. It appears to me the Captain probably corrected for the additional drag with aileron rather than rudder. The full left aileron would cause spoilers to extend on the left wing which could explain why they could not hold altitude. I don’t see anything in any of the written reports that mentions the difficulty controlling the airplane. UAL and the FAA know exactly what happened because everything is recorded. There are no secrets on modern airplanes.
In this incident, part of the fan blade exited out of the front of the engine and partially punctured the hull next to a passenger seated forward of engine. Fan blades going out of the front of the engine is something that most people would consider impossible but is a known failure mode. A few inches higher and it would have hit a window.
Laboratory examination of the skin surrounding the puncture found embedded particles of largely titanium and vanadium that are elements of the fan blade material and thus proving that blade fragments can and do exit out of the front of the engine, even when the incident is considered by definition “CONTAINED”!
I thought this was going to be about pilots who were fatigued because they couldn't sleep due to a hot hotel room
Me too.
I thought it was going to be an avionics compartment on the aircraft. The AC failed and some electronics overheated and did bad things.
Captain Behnam was another in a long line of awesome pilots at United. Such an amazing job hand flying all the way down into HNL and getting everyone on the ground safely.
I was wondering when did 777 have large windows🤣 think you need to do your videos at a time other than 4am, keep up the great work, don't over stress yourself!
HAHAHA!! Me too. I thought maybe it was the newer B787 that does have larger windows.
Shows the need for inspectors to really understand their job and not just do things by rote.
Great episode-complete with a brief discussion of inorganic chemistry!! Your depth of investigation on such a short video is superb.
What's old is new.
Following is a commentary regarding problems with the heat treatment of Springfield 30-06 receivers early in their production:
The problem was with the heat treating furnaces and the "experts" who operated them. In the absence of measuring devices, the heat of the receivers in the furnace was judged by appearance, that is, by the color the metal turned at certain temperatures. When measuring devices were finally installed, it became evident that on sunny days the receivers were heated to a much higher temperature than on cloudy days, when the color of the glowing receiver was easier to judge.
It still boggles my mind that airplane manufacturers don't put cameras aimed at critical structures sufficient to allow the pilots to see damage like this without leaving the cockpit...
Too much weight
The 777-300ER has cameras, Airbus 350 and 380 have…
If they can prove it's not critical and then build it with consumer parts, they could have a couple of video recorders around.
At least 2 cameras could be placed inside the cabin facing out towards each engine, couldn’t they?
@@kommandantgalileo DUMB COMMENT
This flight crew deserved their awards and so much more!
Great video, super interesting and very well produced and presented. Thanks for your efforts to keep us entertained.
incredible investigation, and incredibly well presented. To keep the video brief when there's so much to explain, and there's such depth to the topic. Hats off to you man!
I am glad I didn't sign off on that last inspection. Feel sorry for who did. Appear P&W good engines but not as good as years ago. Well, that appears with everything now.
I was a fan blade inspector for UAL at the time of this incident. There were only a hand full of us, 3-4, inspecting fan blades at the time. We were all concerned that we would be the one that had made those set of fan blades serviceable and it was something that we had missed. I never did hear what the final determination was as I retired in September of 2018. So this was quite personally interesting. I'm relieved it wasn't any of my fellow UAL inspectors that had missed something.
@@fireisle
I been there myself too. I know what you are talking about. Sadly this type of corporations action is only increasing.
Excellent video. Well articulated and informative!
Very good episode ! As always thank you sir.
Thie circumstances and bad inspections are eerily similar to United Flight 232.
It's amazing what types of seemingly irrelevant details can lead to such severe problems.
Eye-opening! Excellent report!
Great video. Like the detail you present...very good! Thank you for creating, uploading and sharing!! 😊✈♥
2:02 I can't believe how well the turbine spinning inside the engine is animated on Microsoft Flight Simulator.
Very nice explanation! Thank you sir for your videos
We were sitting at the gate in LA on our way to Hawaii in an L1011 when the entire airplane filled with white smoke. They got us off the airplane and told us the air-conditioner had gone berserk.
Then they told us that one of the emergency slides had accidentally been partially deployed and we were waiting for another aircraft.
Nothing they told us checked out in the end.
Then they asked us to remain calm and that basically if we were good, we would win lots of prizes.
In reality, the people who yelled the loudest were escorted to another flight leaving at that moment and received 2000 dollars worth of fully refundable credits.
My best friend worked for Delta out of LA and was meeting us the next day in Honolulu. He told us all about it. When we finally got there the day after he did for our 4 day honeymoon in Hawaii.
We got in around midnight and left 18 hours later. And couldn't get a room. Had to share one with my friend and his girlfriend.
Wow! Intriguing. Who would have known the heat in the place in CT would have had that result. Do tests in a bunker.
Well, thank you. I learned something new today about crack detection methods. 👍🏻😀🇬🇧
P&W has had engine blade problems at least back to the TF-30. I gotta wonder how they're still around.
I could listen to your voice for hours. Consider narrating other types of videos please. True crime would be amazing.
Another winner. Thanks.
At 8:56 -- Nicely put, MACI. :)
W00000! Perfect to make breakfast to. Thank you so much for all the great content!
I tend to stay away from flying, and particularly United Airlines. From the maintenance issues to its poor baggage handling, it is bad news. I’m still looking for my lost bags from 2017 which carried my Moms ashes😢😢
Hi There !
A Little Update :
Today ICAO Refers to ETOPS (Extended Twin Engine Operation Standards) as EDTO (Extended Diversion Time Operation) Due To New Advances in The Aeronautical Industry.
👍🏼
FAA probably still calls it ETOPS because 'Murica and they gotta do things differently.
Great video! I'm a huge fan of your channel. I have loved Aircraft since I was a kid. My Grandparent's lived about 20 minuets away from Canada's largest Air Force Base. The Base is call Canadian Forces Base, 8 Wing Trenton. I spent allot of time with my Grandparents so I was able to see many different Military Aircraft. I remember the old 707, that jet has to be the loudest Aircraft I've ever heard! The Base is currently home for the C-17A, C-130J, F/A-18C and a Search and Rescue SQN. There's a parking lot at the end of CFB Trenton and I really enjoy watching the Aircraft take off, maneuvers and landing's! That all being said I will NEVER travel on a jet ever again! If I need to go somewhere I always take the train. After watching your channel I'm very paranoid about flying! Thanks again for your great content!
I like to hear about how the industry leans from almost every incident. Air safety keeps getting better. I prefer flying to driving.
My Uncle Frank was in the CF. He was at Trenton many times. And even got to Alert, NWT!!!
Yay, Porter is flying to YVR now! Soon YXE and YEG i hope!!
Scary
As Artie on Laugh In would say “ Vetty interesting!”
Slap few f’in GoPros and they will do the job ! Obviously needs bit of hardening / weather proofing 😅
The principle stands though. Imagine someone deciding to create a tablet to replace cockpit manuals and thinking iPads should not be considered first.
Did they investigate the manufacturer of the air conditioning?
Where was the inspector saying "the ambient conditions are out of spec, I'll come back from my hotel when you have something to offer."...I'll hazard a guess that those "uncooperative" sorts were filtered out in the hiring process.
"Engines Turn Or Passengers Swim" 🤣🤣🤣
200k incoming 👀
4:10 "All that ETOPS preparation came together perfectly to get this damaged plane back on the ground"
Can someone tell me what this event had to do with ETOPS?
Heeeey I'm not an imaginary viewer. xD
This was a really interesting video; I can only imagine how scary that must have been for the passengers...especially the ones that could see what the engine looked like. And extremely stressful for the pilots. They did a great job, though!
I think the more you watch these aircraft incidents the more confident you get. You learn that planes can fly with one engine and glide with no engines. You learn engine casings are designed to contain exploded engines.
@@thewhitefalcon8539 Also, a great reminder of how seriously they take any of these incidents, improving technology/training, thus always improving the safety.
@@thewhitefalcon8539 True and I have seen enough videos over the past year of binging to know that. But that's not the case, I'm sure for the average passenger.
THIS IS THE SECOND VIDEO THAT I POSTED ABOUT OUTBOARD CAMERAS, AND BOTH TIMES PEOPLE GANGED UP AND STARTED.
FACT THEY PUT OUTBOARD CAMERAS ON PLANES.
FLIGHT 191 OUT OF CHICAGO IN 1979 HAD AN OUTBOARD CAMERA.
Yes, some planes have them sometimes and they aren’t new. But you still don’t typically see them in most planes. And like I said before the main reason you don’t see them more is because the benefits they could provide are not enough to make it worthwhile considering their cost, power requirements, maintenance needs, added weight, added training, etc. You can’t just tape on a couple of Go Pros!
@@Sashazur DUDE THEY HAVE CAMERAS.
Hey, amazing video, hope you remember the suggestion I gave for the 777 MSFS , it corrects the instruments and the name is Salty mod.
Why would Yoytube put an airline ad on before a plane accident video. Seems a bit insensitive to me.
*I got hit by a plane yesterday.*
@@Avendesora*747*
Quite incredible that a massive aviation company had such a crapulous area for conducting highly sensitive tests - moreover, on a FAN blade - quite possibly the most important single component on the entire plane - you would have envisaged a surgically clean, climate controlled, perfectly lit, hermetically sealed lab looking like a movie set for a Sci fi film. Absolutely incredible - and for all those highly qualified people to be in the same room and none of them think to query it seems astonishing - just goes to show that often really clever people lack common sense!
Similarly, the fact that the testing expertise was passed on like an apprenticeship - alright for blacksmithing or plumbing, but probably not for such a safety critical vital functional test which presumably required not only nanometric precision in conducting it - but great technical knowledge and experience to work out what state a blade is in from the raw data - as someone wholly unconnected with aviation, I can honestly say that to me it would have stuck out like a sore thumb - where are the written protocols, on what basis do we pass or fail a blade and why those factors are the basis - and clearly, because pronouncing on the state of a fan blade is such a high level decision clearly. One would surely feel the weight of the responsibility of each and every one since wrong calls could, depending on which way round, see a faulty one put back into service which goes on to cause a catastrophic failure where lives are lost or, if you are too conservative and fail an acceptable blade, that is probably adding tens - if not hundreds - of thousands of dollars unnecessarily onto the bottom line and, while safety is pretty important, by definition it is less important than making a profit cos if you don't, there's no company anyway.
I really found this fascinating for sure - but mostly, just bizarre!
That's why I use small Linux instead of large windows
Dammit, take my like :')
thank you for, this i didnt now that AC could corse a plane to nearly crash
im NOT going on a aircraft soon!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
But it wasn’t the AC on the aircraft. How random is that!
This is an ex-UAL plane and it's why original Continental planes all had GE 90 engines.
One of the most awesome things about the GE90 (and GEnx, GE9X, and LEAP, too) is that these have solid carbon-fiber-composite fan blades - meaning no hollow fan blades that might be susceptible to disintegration.
@@rafaelwilks Those blades can also have problems but the GEs are much tougher engines than P&W stuff.
Do they really paint fan blades?
Only the ones with visible cracks.
QUESTION...Does anyone know which flight sim game 🎮 he used?? 😉✌️✈️
So it was an old engine past it's shelf life
interesting could it be from too many people making a loggy in a toilet ?
Boy at the end of the video at 9:30 in the video what you said was really profound...
"I guess if something can really happen, it will happen, huh?
Idk who writes for you but they deserve more money with that type of amazing stuff.
“One ac unit couldn’t keep up so they had to add a second “ is such a ridiculous statement I don’t believe anything you have to say.
Why is it ridiculous?
Your etops history is really off..
Twins could not fly over oceans from back in the piston engine days.
This started to change during the 767 era and then thr 777 etops was once again improved.
Not only that, but this accident had absolutely nothing to do with ETOPS as they were just 40 minutes away from land.
So what did this have to do with a room??
Ahhh, the room in which the engineers did the testing for cracks in the compressor blades, or didnt you listen to that bit?
The poorly cooled area caused them to miss the crack & let it fall through the cracks. Yes I did.
Why do the recordings so late as 4am :(?
Wouldn't it be better to be well rested when narrating? I think you'd be much more comfortable...
i'm not an imaginary viewer. I'm a real man! [in Pinocchio's voice]
United doesnt do well with the flight containing 175 😅
Not remotely funny at all.
Not your best work MACI.
first
Happy Saturday! 2nd
Why the FUCK is an important aviation test being performed INSIDE A REGULAR ROOM??
where tf else do you think they do tests? All the rooms where they do stuff are just rooms. Even, like, laboratories and server rooms are just rooms. Ok, the chemistry lab has good ventilation and the server room has good air conditioning and lots of power outlets - they're still just rooms.
Who says it was a "regular room", anyway? It could have been a lab room (which is a regular room with vinyl floor and workbenches)
@@thewhitefalcon8539 Just look at his name and it explains things.
Murphy's Law I think that incident could fall under.