Just how is it that a plane is making such a "normal" approach and suddenly all hell breaks loose? I would expect something snapped, wind shear slammed it or the wing dramatically lost lift. If it was the rudder, were they making a major turn? It seems the thermal shock test points to the possiblility, how probable is it? Couldn't improper position of the piston be a result of wear, manufact. defect, contam hyd fluid, etc --more probable than thermal shock?
And they will wonder why I focus on every exit on the plane, head for the tail section seats, check for a life jacket under the seat, bring a respirator from H. Depot, dash out after the plane lands...all because of watching two dozen of these stories!
Me and some my Mates are going on a trip to America soon and I asked one of them (who I thought had a fear of flying) if he did have a fear of flying to which he replied "No I don't have a problem with flying it's just that I watch too much Air crash investigation"
@RickyMCampbell Yep, it looks pretty much the same so there's no mystery. Of course United 93 dove into the ground at a very high speed from a much higher altitude than United 585 or USAir 427 so the wreckage was concentrated in a smaller area, but other than that there's no major difference between the debris fields.
If you have a series of accidents and you have a prime suspect, a part that may be malfunctioning, but you can't prove it beyond all doubt, wouldn't it be prudent to replace that part anyway, just in case? I know that's not a perfect solution and you may still have a problem on your hands, but at least then you've done SOMETHING. You can be sure that doing nothing won't help at all. Tell carriers world-wide "replacing this $100 part may help save your $32 Million dollar airplane."
@hbunnyo: Bat puckey. Thousands of engineering changes happen all the time: a failure mode is determined from another accident of some test; an engineering change is ordered and followed through on, and it never causes a death, and you never get to see it on TV. Get off your couch and go read some of that boring stuff you ignore all the time in favor of a TV series.
@puncheex What are you on about you mad arse? Don't imply I'm uneducated. Of course I know that. This accident happened though, you can't deny, as a result of a simple overlook in safety. Not everything is corrected as a result of what you said above.otherwise the accident wouldn't have happened. Perhaps I should have said sometimes it takes a severe accident.
@hbunnyo: I implied nothing of a sort. Problems from minute to extreme are corrected in aircraft all the time. You imply that someone has to die before the industry does anything, and in that you are wrong. I presumed you were wrong because you are ill-informed; if you want to claim to be just a drive-by jerk, then go right ahead. Yes, sometimes it takes a an accident before all the implications of a design are seen. That's a pretty far cry from what you said above.
@puncheex Uneducated and ill-informed is arguing semantics. You are correct I said that, however I did not mean it that way; I made a mistake. Your attacking approach leaves a lot to be desired yourself. I will not repeat what I said in the previous comment, but that explains what I meant to say. What you said about me and my informed view was incorrect. I was applying it to also a broader picture than the aviation industry.
@hbunnyo: What approach would have been better? I'm an engineer; we spend our working lives fixing problems, future, current and even in the past. For someone to come to the conclusion that we don't do anything (in aviation or worse, in general) is incorrect and demeaning. Perhaps you didn't mean that, but that's how it come across.
I think we've managed to beat this to death, and I think you didn't mean what was said. Apology accepted, and I guess we try harder.
@puncheex I apologise again. Just out of interest. Doesn't Thermal Shock seem like a bit of a simple thing to overlook or had nothing like this ever happened before this event?
@hbunnyo: Yes, I would think so. I worked on the 2 Viking Martian landers back in the 70s, and we had a long list of thermal testing (as well as vibration and live environment) requirements that were done on a "test article" for the landers. There is no way that thermal shock should have been a surprise. I think maybe the events in the video were dramatized a might. If this had been about an accident in the 50s, perhaps. It's likely the series is beginning to run out of real accidents.
@puncheex I was thinking myself how long this series could possibly run for. Aviation is the safest it's ever been so new accidents don't really come about. Congratulations on your work. Although I'm sure you've probably heard that enough =P.
@sunnchilde If they don't understand the cause before they start replacing parts willy nilly the situation could deteriorate even further. There's no guarantee that the new machinery would perform any better if it hasn't been properly redesigned and in fact it could make things even worse.
@sunnchilde: If you don't know the error modes, what are you going to replace it with? Would the one from a 747, designed for a totally different plane, be better, or even functional? Then what will you say when a totally new accident happens because of your fix? You're starting to mess with the edges of criminal liability if you can't explain why you made the change.
We all get on whatever plane is at the gate when we get there it's not really a choice, but if I was given one I think I'd bypass the 737 and choose the 757.
@spacemug1 In 1991 you didn't have that option. And the 757 has it's own problems, just as the DC-10 did, and the 727, and the Airbus A300, and so on. If that bothers you do something you can control - take your car, if you think you're safer because of your freedom of choice.
No way is the 737-200 a beauty. It's a death trap. Underpowered and undersupported and thus easily prone to huge air pockets and turbulence, I won't fly a 737 unless it's 700 series or newer. Sure those tiny 200 engines are cute and all, but that plane blows big time. Why do you think US Airways is buying A320's and tossing the old 737's to the curb? Because they suck, that's why. Even the shoddy Tupolevs haven't crashed at a higher rate than the 737 100-600's. Sure they fly more, whatever...
@StollandSon I've flown in the 737-200 many times, it's a very cool little plane. And it's a lot more reliable than it was when the accidents occurred. US Airways is replacing their old 737s because they're old, that's all, and Airbuses best suit them right now. Plus, why do you think Southwest is all-737, and they haven't ever had a single fatality aboard?
@rockymountainrandom Right and that's why SW is rplacing all their old 737's with the new 700 and 800's. See, they're replacing them because they are bumpy and prone to turbulence much more than the A320's or th 700's and 800's. Sorry, but it's a crappy plane. It was revolutionary at the time, but it's an old and obselete POS now. The only reason SW flew them was because they bought them used as a low budget airline. SW has never had a fatality but they have had crashes.
@rockymountainrandom As a matter of fact they have never had a PASSENGER fatality. They have however, killed a little boy on the way to school in Chicago after they overshot the runway at midway. Ironically, that 2005 accident was in a 700. The 2000 accident in Burbank was in a 300. All and all, it is it safe? Absolutely, but it is a bumpy mess. The winglets make all the difference in the world between a flight loaded with bumps at every little gust of wind or a smooth ride.
@rockymountainrandom Even the 747 with it's large seating and it's long service record has only had 35 crashes resulting in the deaths of 3503 people. Yup, the 737 is totally safe even though it's casualties dwarf every airliner ever built.
@rockymountainrandom Lastly, I give you the omparison that truly shows how shoddy the 737 is. There have been 31 Tupolev Tu-154 crashes since 1973 resulting in the deaths of 2951 people. Indeed the Tu-154 which was the 737 of the Soviet Union and had as similar a workload as pssible to the 737 is dwarfed in casualties by the so-called beauty of an aircraft - the 737. No matter which way you slice it; it's a piece of shit. When Aeroflot is safer, it's a death trap.
@StollandSon Then again, there are a lot of 737s. As the program suggests, it is a backbone of the aviation industry, and one of the best Boeing has ever build. Of course, spare parts would the problem, and maintenance, too. Comparing the crash to 737s to other airliners is like comparing road accidents with economy cars with road accidents with buses; Cars have higher accident rates, while buses don't. Lastly, just because the crash rate is higher, that doesn't mean the 737 is bad.
@rockymountainrandom Lastly, I give you the omparison that truly shows how shoddy the 737 is. There have been 31 Tupolev Tu-154 crashes since 1973 resulting in the deaths of 2951 people. Indeed the Tu-154 which was the 737 of the Soviet Union and had as similar a workload as pssible to the 737 is dwarfed in casualties by the so-called beauty of an aircraft - the 737. No matter which way you slice it; it's a piece of shit. When Aeroflot is safer, it's a death trap.
Well, incase you didn't know (as I presume you don't) this is actually the British version. If you want a 'damn' American to narrate it, then go and watch your own version; Air Disasters.
I can't even imagine the horror the ATC person must have experienced seeing the plane lose control and plummet to the ground through his binoculars. O_O
@NowKillYourself yep true story. However, they don't have to live with the memory forever and ever (they don't live at all.) Not that dying is better, just saying. Their horror was only 10 seconds long. His will be until his last breath.
The unnatural super cool/super hot test they used could make many components fail. How about a simple explanation? Severe wind effect/broken bolt/electrical short/computer programming error/bent control rod, just
plain wear and tear etc. The rarity of this type of crash in this plane with a gazillion hrs of safe use makes it hard to conclude that the rudder control unit is the real culprit.
@normanjtongmd: The 737 didn't have computers. They were hydraulically controlled, like the brakes on your 1965 Corvair. You can rest assured that all the other possibilities were exhaustively researched in the investigations; they can't explain all that in an hour's program. Find one of those investigation reports, preferably after watching the program, and see what is considered but not mentioned. The cold/hot test is valid; read something about temperatures in the stratosphere.
@SolarSweetheart I'm bit of a nervous flier myself.. and I have an odd habit of watching these when RETURNING from such holidays :P
At least I know multiple things what can go wrong on flight, but mostly nowadays I relief with a fact that by propabilities you could fly 6000 years once everyday without getting into air accident.
Before watching Air Crash Investigation May 2008 My mom: Hey, let's take a family vacation to singapore next month! Me: Do we get to ride an airplane? My mom: Yea. Me: WOOHOO!! After watching Air Crash Investigation Last Month (December 2011) My mom: Hey, let's take a family vacation to Bali! Me: Do we get to ride an airplane? My mom: Yea. Me: Oh shit.. True story.
@johnsill1 Well I kind of think it's like President Bush asking Jeb Bush and the chairwoman of my election committee to check into elections and recount the votes in Florida... but hey if we can let such a dumb thing happen to chose our president I have no doubt we'd do something stupid like let the maker decide if it broke cause it was their fault. However we can hope that the manufacturer cares more about whether people die than they do the five minutes of bad press.
@johnsill1 I wouldn't say so. It doesn't cost the manufacturers (much) to recall parts. Its the insurers and the airlines who foot the brunt of the cost. The manufacturer has a strong interest in being able to advertise the quality of their aircraft. Besides which, the 737 is one of the world's favourite aircraft - Boeing can't really afford any mistakes.
Companies that make planes generally have a vested interest in finding the fault as quickly as possible, if their planes keep killing people then airlines won't buy them.
@johnsill1: Not if they want to stay in business, and those kind of shenanigans are hard to keep covered up forever. Tee off an employee who knows about it, and your corporate ass is grass; he's rich and you won't ever find a job again, and your company will be decaying fodder. Even incompetence, let alone maliciousness, is harshly dealt with.
I don't get it how from thermal shock or the hydraulic fluid freezing momentarly wth in the control sleeve. How did that convert system to crossed control of both pedal and rudder?
@bigtopbollocks: The valve is complex, and it controlled both directions of travel. With jamming a possibility, it's possible it could jam in an unexpected position which allowed a crossed control.
They were going 370 kmh which is just under 340 feet per second. Do you think there is any chance you would feel that impact, even for a split second?
@9999finesilver Doubtfully, it was lights out in less than a nanosecond. That's if most of the passengers and crew weren't knocked out cold from the G-force attributed to such a violent plummet to the earth.
@NowKillYourself: A nanosecond is a bit much. There is a few milliseconds between when damage to the body starts to occur and when the brain looses the ability to sense pain, let alone react. Nerve impulses travel at about 300 ft/sec, so it's doubtful anything could have reached the brain before it was jellied.
I was shitting outside with my family having a picnic during this crash. We felt the impact, and my mother got tears in her eyes. I was three at the time. I remember going to the monument, with the names engraved on the granite slab. It's very sad.
It does not explain why the valve malfunctioned during landing approach every time? And I'm sure that even with the rudder reversal information a pilot would not be able to recover. When you have flown for years knowing that when you press it left it goes left it becomes natural. Like putting out your arms when you trip, it is an instint. It would take more than 10 seconds to remember about the reversal and fight instinct.
i thought it had to do with the landing approach. All 3 planes were low, with their gear down, Why didn't his rudder problem occur at other times in the flight?
Try to watch the video again. The test of the dual servo valve was conducted under extreme conditions. The dry ice cooling was to simulate the cold resembling at 30,000 feet or 10,000 metros. The hot hydraulic fluid was to resemble the operating temperature of the hydraulic fluids, which the dual servo valve used to conduct the movement of the rudder. It also stated that under these conditions, the dual servo valve would reverse its functionality, unknown to the pilots.
"Dear Lord, help me go to my destination without the plane getting destroyed, crashing, and plugging to the waters, help all of us in this flight to be confortable. In Jesus' name, Amen"
I've travelled on many 373s. They're so wonderful. However, the sudden and tragic loss of United Airlines Flight 585 and US Air Flight 427 made me not to travel in them for years.
This was a terrible case of air crash. A situation where the pilots had no idea as to what the hell was happening and a crash that caused the investigators to follow the same trail for 10 years !!!!
I fully appreciate the intriguing way in which this documentary has been shot.
@sasukeAMVcreator I think most of us air travellers have. Either that or the Airbus A-320/19 only continental or Larger populated countries use Larger 747's 777's or 380's, forgive me i'm not a troll just felt like commenting
@Tregmedia Yup I agree haha. I haven't flown much myself. I've been on 737 with Flybe, 777 with American Airlines and 747 with KLM plus some other smaller planes one with a propeller, that was scary stuff for some reason haha.... I'm bored too.
@sasukeAMVcreator Prop plane has that old romantic novelty to it and the noise, and KLM is my Countries main carrier (Koninjn Lucht Macht), if you are bored check out my channel and some of my Uploads
When I saw video of the Flight 93 crash sight, I remember thinking how similar it looked to the Colorado Springs crash (was just a kid in Denver at the time). Not much left when a plane goes straight in. 911 truthers can suck it. RIP to passengers on both planes.
The worst thing is everytime there is a crash near an airport, the NTSB has to fly in to the same airporrt. I want to see an NTSB investigation on an NTSB crew cash .
If I watched an aircraft plummet, with 25 souls on board, crash in front of my eyes, I wouldn't be screaming "Crash", I wouldn't even be able to speak, i'd be stuttering, and sobbing........
these valves are delicate because they have to have these tight tolerances, otherwise they could not fullfill their work; you can minimize the risk of a jam but you can never be sure that they fullfill their duty to 100 %.
But this is valid for all tech. Sytems unfor.; only Solution is to have as many redundant Systems as even possible.
look like windshear conditions vary dangerous for planes landing actually major thunder storm like windshear can become just as dangerous as an f-3 tornado and can do simaler damage on the ground
Some music during the introduction (~40seconds) is taken from S.T.A.L.K.E.R. the game. It doesn't just sound like it, it IS the music from STALKER. Maybe it's just a stock tune though.
it's in reverse.. (like the rudder) it crashes the most *because* its the most popular (largest number in existence) ... not the other way around.....
@killianw68 how is an airplane going to be 'most popular' when it's crashing all the time(even though that's not true) .. you meant to say 'most notorious'
@killianw68 actually, it's the most popular airplane because it is so successful. It's a perfect airplane for short-medium haul flights, and has carried millions of passengers through the years. It doesn't crash the most. The aircraft that crashes the most could be the McDonnel Douglas MD-11, or the Douglas DC-10. The Boeing 737 is one of the safest airplanes in the world. I think you don't know anything about airplanes.
The video does not explain why two extreme and simultaneous temperatures on a valve test rig cause a locked and sometimes reversed valve. Is the condition influenced by aircraft flight envelope conditions, valve design, wear or metallic particles in hydraulic fluid?
If you do not understand the trigger(s) to cause malfunction you do not understand the root cause of the problem.
Agreed.Investigation does seem a bit incomplete as to how those extreme conditions were achieved on 2 different days with different weathers and a 3rd potential crash.A good and tough investigation anyway.
@jules5811 true, but instead we have the knowledge of how to identify and deal with this particular anomaly whilst in the air and salvage a dire situation, i have nothing but total reassurance that now is the safest time to fly than ever before
@jules5811 You are so smart......and intentionally inappropriately technical. Can you put out there any more technical terms specific to aviation to encourage others to say WTF...?
My God, no wonder it crashed, the female copilot is the same woman from ACI series "Colgan Air Flight 3407 - S10E4- " Stalled in the Sky" . So apparently this woman is always somewhere at the controls during fatal flights. We must find her and get her out of the cockpit!!!!
Just how is it that a plane is making such a "normal" approach and suddenly all hell breaks loose? I would expect something snapped, wind shear slammed it or the wing dramatically lost lift. If it was the rudder, were they making a major turn? It seems the thermal shock test points to the possiblility, how probable is it? Couldn't improper position of the piston be a result of wear, manufact. defect, contam hyd fluid, etc --more probable than thermal shock?
Why the boiling hyd fluid?
normanjtongmd 5 days ago
and i am going on holiday from Aussie Land to USA soonish by United Airlines ouch; 2000 plane crashes a year -H.E.L.P....
Pebscorner 6 days ago
And they will wonder why I focus on every exit on the plane, head for the tail section seats, check for a life jacket under the seat, bring a respirator from H. Depot, dash out after the plane lands...all because of watching two dozen of these stories!
normanjtongmd 6 days ago
If that little hydraulic unit has the capacity to cause people to experience a terrifying death dive, CHANGE the damned thing...and change it OFTEN!
normanjtongmd 1 week ago
Me and some my Mates are going on a trip to America soon and I asked one of them (who I thought had a fear of flying) if he did have a fear of flying to which he replied "No I don't have a problem with flying it's just that I watch too much Air crash investigation"
MDCAngryWalnut 1 week ago
the old episodes were much better!
MrSpraipaint 1 week ago
waooo thats really creepy... when the locutor said.. without warning the plane starts to spin out of control"""
quiiquee85 1 week ago
'one of the first'? That makes no sense. There is only one first, and one second, etc...
transdrole 1 week ago
911 Flight 93 mystery crash.
Note the wreckage.
RickyMCampbell 1 week ago
@RickyMCampbell Get brains.
Pvjinflight 1 week ago
@RickyMCampbell Yep, it looks pretty much the same so there's no mystery. Of course United 93 dove into the ground at a very high speed from a much higher altitude than United 585 or USAir 427 so the wreckage was concentrated in a smaller area, but other than that there's no major difference between the debris fields.
icemachine79 1 week ago
Comment removed
RickyMCampbell 1 week ago
your ass is really up for grabs when you go up in an airliner...
43fatfax 2 weeks ago
If you have a series of accidents and you have a prime suspect, a part that may be malfunctioning, but you can't prove it beyond all doubt, wouldn't it be prudent to replace that part anyway, just in case? I know that's not a perfect solution and you may still have a problem on your hands, but at least then you've done SOMETHING. You can be sure that doing nothing won't help at all. Tell carriers world-wide "replacing this $100 part may help save your $32 Million dollar airplane."
sunnchilde 2 weeks ago
@sunnchilde Humans never do something until something terrible happens that we can figure out.
hbunnyo 1 week ago
@hbunnyo: Bat puckey. Thousands of engineering changes happen all the time: a failure mode is determined from another accident of some test; an engineering change is ordered and followed through on, and it never causes a death, and you never get to see it on TV. Get off your couch and go read some of that boring stuff you ignore all the time in favor of a TV series.
puncheex 1 week ago
@puncheex What are you on about you mad arse? Don't imply I'm uneducated. Of course I know that. This accident happened though, you can't deny, as a result of a simple overlook in safety. Not everything is corrected as a result of what you said above.otherwise the accident wouldn't have happened. Perhaps I should have said sometimes it takes a severe accident.
hbunnyo 1 week ago
@hbunnyo: I implied nothing of a sort. Problems from minute to extreme are corrected in aircraft all the time. You imply that someone has to die before the industry does anything, and in that you are wrong. I presumed you were wrong because you are ill-informed; if you want to claim to be just a drive-by jerk, then go right ahead. Yes, sometimes it takes a an accident before all the implications of a design are seen. That's a pretty far cry from what you said above.
puncheex 1 week ago
@puncheex Uneducated and ill-informed is arguing semantics. You are correct I said that, however I did not mean it that way; I made a mistake. Your attacking approach leaves a lot to be desired yourself. I will not repeat what I said in the previous comment, but that explains what I meant to say. What you said about me and my informed view was incorrect. I was applying it to also a broader picture than the aviation industry.
hbunnyo 6 days ago
@hbunnyo: What approach would have been better? I'm an engineer; we spend our working lives fixing problems, future, current and even in the past. For someone to come to the conclusion that we don't do anything (in aviation or worse, in general) is incorrect and demeaning. Perhaps you didn't mean that, but that's how it come across.
I think we've managed to beat this to death, and I think you didn't mean what was said. Apology accepted, and I guess we try harder.
puncheex 6 days ago
@puncheex I apologise again. Just out of interest. Doesn't Thermal Shock seem like a bit of a simple thing to overlook or had nothing like this ever happened before this event?
hbunnyo 6 days ago
@hbunnyo: Yes, I would think so. I worked on the 2 Viking Martian landers back in the 70s, and we had a long list of thermal testing (as well as vibration and live environment) requirements that were done on a "test article" for the landers. There is no way that thermal shock should have been a surprise. I think maybe the events in the video were dramatized a might. If this had been about an accident in the 50s, perhaps. It's likely the series is beginning to run out of real accidents.
puncheex 6 days ago
@puncheex I was thinking myself how long this series could possibly run for. Aviation is the safest it's ever been so new accidents don't really come about. Congratulations on your work. Although I'm sure you've probably heard that enough =P.
hbunnyo 5 days ago
@puncheex So I apologise for calling you a mad arse.
hbunnyo 6 days ago
@sunnchilde If they don't understand the cause before they start replacing parts willy nilly the situation could deteriorate even further. There's no guarantee that the new machinery would perform any better if it hasn't been properly redesigned and in fact it could make things even worse.
icemachine79 1 week ago
@sunnchilde: If you don't know the error modes, what are you going to replace it with? Would the one from a 747, designed for a totally different plane, be better, or even functional? Then what will you say when a totally new accident happens because of your fix? You're starting to mess with the edges of criminal liability if you can't explain why you made the change.
puncheex 1 week ago
Was this an old plane?
normanjtongmd 3 weeks ago
We all get on whatever plane is at the gate when we get there it's not really a choice, but if I was given one I think I'd bypass the 737 and choose the 757.
spacemug1 3 weeks ago
@spacemug1 In 1991 you didn't have that option. And the 757 has it's own problems, just as the DC-10 did, and the 727, and the Airbus A300, and so on. If that bothers you do something you can control - take your car, if you think you're safer because of your freedom of choice.
puncheex 1 week ago
@puncheex Oh dear, another one of those replies from someone who clearly hasnt read and understood what I said.
spacemug1 6 days ago
The Boeing 737 is the plane that i don't like...
Aero1000able 3 weeks ago
No way is the 737-200 a beauty. It's a death trap. Underpowered and undersupported and thus easily prone to huge air pockets and turbulence, I won't fly a 737 unless it's 700 series or newer. Sure those tiny 200 engines are cute and all, but that plane blows big time. Why do you think US Airways is buying A320's and tossing the old 737's to the curb? Because they suck, that's why. Even the shoddy Tupolevs haven't crashed at a higher rate than the 737 100-600's. Sure they fly more, whatever...
StollandSon 4 weeks ago
@StollandSon I've flown in the 737-200 many times, it's a very cool little plane. And it's a lot more reliable than it was when the accidents occurred. US Airways is replacing their old 737s because they're old, that's all, and Airbuses best suit them right now. Plus, why do you think Southwest is all-737, and they haven't ever had a single fatality aboard?
rockymountainrandom 4 weeks ago
@rockymountainrandom Right and that's why SW is rplacing all their old 737's with the new 700 and 800's. See, they're replacing them because they are bumpy and prone to turbulence much more than the A320's or th 700's and 800's. Sorry, but it's a crappy plane. It was revolutionary at the time, but it's an old and obselete POS now. The only reason SW flew them was because they bought them used as a low budget airline. SW has never had a fatality but they have had crashes.
StollandSon 4 weeks ago
@rockymountainrandom As a matter of fact they have never had a PASSENGER fatality. They have however, killed a little boy on the way to school in Chicago after they overshot the runway at midway. Ironically, that 2005 accident was in a 700. The 2000 accident in Burbank was in a 300. All and all, it is it safe? Absolutely, but it is a bumpy mess. The winglets make all the difference in the world between a flight loaded with bumps at every little gust of wind or a smooth ride.
StollandSon 4 weeks ago
@rockymountainrandom The 737 has been in 87 crashes since 1972 resulting in the deaths of 4802 people. Quite a safe plane indeed...
StollandSon 4 weeks ago
@StollandSon Whereas since 1988 there have only been 10 A320 crashes with a death toll of 443.
StollandSon 4 weeks ago
@rockymountainrandom Even the 747 with it's large seating and it's long service record has only had 35 crashes resulting in the deaths of 3503 people. Yup, the 737 is totally safe even though it's casualties dwarf every airliner ever built.
StollandSon 4 weeks ago
@rockymountainrandom Lastly, I give you the omparison that truly shows how shoddy the 737 is. There have been 31 Tupolev Tu-154 crashes since 1973 resulting in the deaths of 2951 people. Indeed the Tu-154 which was the 737 of the Soviet Union and had as similar a workload as pssible to the 737 is dwarfed in casualties by the so-called beauty of an aircraft - the 737. No matter which way you slice it; it's a piece of shit. When Aeroflot is safer, it's a death trap.
StollandSon 4 weeks ago
@StollandSon Then again, there are a lot of 737s. As the program suggests, it is a backbone of the aviation industry, and one of the best Boeing has ever build. Of course, spare parts would the problem, and maintenance, too. Comparing the crash to 737s to other airliners is like comparing road accidents with economy cars with road accidents with buses; Cars have higher accident rates, while buses don't. Lastly, just because the crash rate is higher, that doesn't mean the 737 is bad.
TheOz91 3 weeks ago
This has been flagged as spam show
@rockymountainrandom Lastly, I give you the omparison that truly shows how shoddy the 737 is. There have been 31 Tupolev Tu-154 crashes since 1973 resulting in the deaths of 2951 people. Indeed the Tu-154 which was the 737 of the Soviet Union and had as similar a workload as pssible to the 737 is dwarfed in casualties by the so-called beauty of an aircraft - the 737. No matter which way you slice it; it's a piece of shit. When Aeroflot is safer, it's a death trap.
StollandSon 4 weeks ago
lol 1. cant a damn American narrate the show!?!?!?? its about an American plane which crashed in America.
2. these re-enactments are always so gay lol
DiamondPilotDan 1 month ago
@DiamondPilotDan
"This is 'Murrca, damnit! We don't speak no newfangled Brit language!"
hamstergirl591 1 month ago
@DiamondPilotDan
Well, incase you didn't know (as I presume you don't) this is actually the British version. If you want a 'damn' American to narrate it, then go and watch your own version; Air Disasters.
GemmasAGem 1 month ago
@GemmasAGem I thought it was called Air Emergency.
rockymountainrandom 4 weeks ago
dude their alt is low but why they such experince that
HACKERMASTERDESTROY 1 month ago
ur desciption say that they experience sudden rudder to make them move to the right maybe the wind is so destructive so the rudder turn to right?
HACKERMASTERDESTROY 1 month ago
was there any weather disturbance or fuel leak just asking
HACKERMASTERDESTROY 1 month ago
@HACKERMASTERDESTROY
If there was, investigators would have known.
GemmasAGem 1 month ago
I can't even imagine the horror the ATC person must have experienced seeing the plane lose control and plummet to the ground through his binoculars. O_O
katenotkatie87 1 month ago
@katenotkatie87 At least he was safe, imagine the horror of those onboard, plummeting to the ground..
NowKillYourself 1 month ago
@NowKillYourself yep true story. However, they don't have to live with the memory forever and ever (they don't live at all.) Not that dying is better, just saying. Their horror was only 10 seconds long. His will be until his last breath.
katenotkatie87 1 month ago
The unnatural super cool/super hot test they used could make many components fail. How about a simple explanation? Severe wind effect/broken bolt/electrical short/computer programming error/bent control rod, just
plain wear and tear etc. The rarity of this type of crash in this plane with a gazillion hrs of safe use makes it hard to conclude that the rudder control unit is the real culprit.
normanjtongmd 1 month ago
@normanjtongmd: The 737 didn't have computers. They were hydraulically controlled, like the brakes on your 1965 Corvair. You can rest assured that all the other possibilities were exhaustively researched in the investigations; they can't explain all that in an hour's program. Find one of those investigation reports, preferably after watching the program, and see what is considered but not mentioned. The cold/hot test is valid; read something about temperatures in the stratosphere.
puncheex 1 week ago
I left there that morning.... we knew about windshear. F/a's in jumpseats NO service. WHY DIDN'T THEY KNOW TOO ???
nancydrew7007 1 month ago
so many ppl watching this vid ryt now
189bhalli 1 month ago
I'm going on holiday by plane soon, lets watch Air Crash Investigation.
SolarSweetheart 1 month ago 15
@SolarSweetheart I'm bit of a nervous flier myself.. and I have an odd habit of watching these when RETURNING from such holidays :P
At least I know multiple things what can go wrong on flight, but mostly nowadays I relief with a fact that by propabilities you could fly 6000 years once everyday without getting into air accident.
metsuri69 1 month ago
WTF!!!!
zuper1412 1 month ago
rexxefa 1 month ago
To send the parts to the manufacturing company to be tested, could this lead to bias in its testing, or not? Just wondering
johnsill1 1 month ago 24
@johnsill1 yea 100% bias to make the dumb goyfags that it was pilots error and not company's error,do u get it goyim
ilias2oo6 1 month ago
@johnsill1 Well I kind of think it's like President Bush asking Jeb Bush and the chairwoman of my election committee to check into elections and recount the votes in Florida... but hey if we can let such a dumb thing happen to chose our president I have no doubt we'd do something stupid like let the maker decide if it broke cause it was their fault. However we can hope that the manufacturer cares more about whether people die than they do the five minutes of bad press.
ULibby 1 month ago
@johnsill1 I wouldn't say so. It doesn't cost the manufacturers (much) to recall parts. Its the insurers and the airlines who foot the brunt of the cost. The manufacturer has a strong interest in being able to advertise the quality of their aircraft. Besides which, the 737 is one of the world's favourite aircraft - Boeing can't really afford any mistakes.
deathstardisco 1 month ago
@johnsill1
Companies that make planes generally have a vested interest in finding the fault as quickly as possible, if their planes keep killing people then airlines won't buy them.
SALordBaxter 3 weeks ago
@SALordBaxter: Yes. The DC-10 died a largely unwarranted death on the backs of a little complacency. It's too bad; it really didn't deserve the rap.
puncheex 1 week ago
@johnsill1: Not if they want to stay in business, and those kind of shenanigans are hard to keep covered up forever. Tee off an employee who knows about it, and your corporate ass is grass; he's rich and you won't ever find a job again, and your company will be decaying fodder. Even incompetence, let alone maliciousness, is harshly dealt with.
puncheex 1 week ago
Yep my heart goes out to the crew as they really didn't know what hit them it was over too soon
nikehaz355 1 month ago
This One was kinda scary :)
AntiBieber 1 month ago
As a Future pilot I refuse to fly with a woman. There is a female co-pilot in 50% of the crashes!!!!!
ClemsonTi6ers 1 month ago in playlist Air Crash Investigation/ Air Emergency/ Mayday
@ClemsonTi6ers You do realise that the other 50% must be men so that point is completely null. Good luck with that future career
sess2011 1 month ago
@ClemsonTi6ers: Be prepared to pump gas, then. You'll need the experience. You'll pardon me if I refuse to fly with you in any capacity, I trust.
puncheex 1 week ago
Trenton-Mercer (County) Airport is in Ewing, New Jersey, not in Trenton. I live in Princeton so I know. Please correct this.
Bozewani 1 month ago
sad...
imkoolkiller99 1 month ago
I don't get it how from thermal shock or the hydraulic fluid freezing momentarly wth in the control sleeve. How did that convert system to crossed control of both pedal and rudder?
bigtopbollocks 1 month ago
@bigtopbollocks: The valve is complex, and it controlled both directions of travel. With jamming a possibility, it's possible it could jam in an unexpected position which allowed a crossed control.
puncheex 1 week ago
This has been flagged as spam show
These bloody crashes have made me Scared of flying. Oh God it is risky! may God saves all of us from this terrible situation..
1samstar1 1 month ago
Comment removed
1samstar1 1 month ago
29:30 pilot says "what the f**k"!!
aitm16 2 months ago
They were going 370 kmh which is just under 340 feet per second. Do you think there is any chance you would feel that impact, even for a split second?
9999finesilver 2 months ago
@9999finesilver Doubtfully, it was lights out in less than a nanosecond. That's if most of the passengers and crew weren't knocked out cold from the G-force attributed to such a violent plummet to the earth.
NowKillYourself 1 month ago
@NowKillYourself
I think she meant "the horror" as in from when the problem started until impact.
@GemmasAGem
There's an American version? The only ones I knew about were this one and Mayday. I can't find any information on it.
hamstergirl591 1 month ago
@NowKillYourself: A nanosecond is a bit much. There is a few milliseconds between when damage to the body starts to occur and when the brain looses the ability to sense pain, let alone react. Nerve impulses travel at about 300 ft/sec, so it's doubtful anything could have reached the brain before it was jellied.
puncheex 1 week ago
Does anyone know the other 3 times that the NTSB left a case undetermined?
Airlinesguyrulz 2 months ago
How does that blonde still have a license?
luckysod04 2 months ago
Weird engines for a 737...
HabboDepaul 2 months ago
anyone else hate the new youtube homepage?
mokum777 2 months ago
LOL. sitting*
fuzzytangent 2 months ago
I was shitting outside with my family having a picnic during this crash. We felt the impact, and my mother got tears in her eyes. I was three at the time. I remember going to the monument, with the names engraved on the granite slab. It's very sad.
fuzzytangent 2 months ago
@fuzzytangent Slight type error there.Or is that how your parents toilet trained you?
MrCriticOfAll 2 months ago
where can i watch this channel online??
prince170591 2 months ago
This comment has received too many negative votes show
crap documentary dont waste your time
tenthousandyearsgoon 2 months ago
IT'S NOT the same woman as aci colgan air---get some glasses DUMBASS!!!
Earthquakejunkie 2 months ago
What a terrible accident. The 737-200 sure is a beauty. What a loss. :(
psgman41 3 months ago 24
@psgman41 What abt the ppl died inside?
189bhalli 1 month ago
@psgman41 900s are better in my opinion
awesomeburodude 2 weeks ago
This has been flagged as spam show
@mrpolaroid thats what you think
Picmadter101 3 months ago
Crash OH! crash
anirocks11 3 months ago
NGO one of the best channels.
mushfiqjan 3 months ago
6:50 it looks like a "crop circle" in the shape of a teardrop coming from right beneath the crash site.
krgrubbs 3 months ago
It does not explain why the valve malfunctioned during landing approach every time? And I'm sure that even with the rudder reversal information a pilot would not be able to recover. When you have flown for years knowing that when you press it left it goes left it becomes natural. Like putting out your arms when you trip, it is an instint. It would take more than 10 seconds to remember about the reversal and fight instinct.
roggerfrogger2 3 months ago
The producers of this show must cheer every time a plane goes down.
mrpolaroid123 3 months ago
i thought it had to do with the landing approach. All 3 planes were low, with their gear down, Why didn't his rudder problem occur at other times in the flight?
mcdonaldsupperdecker 3 months ago
To jules5811:
Try to watch the video again. The test of the dual servo valve was conducted under extreme conditions. The dry ice cooling was to simulate the cold resembling at 30,000 feet or 10,000 metros. The hot hydraulic fluid was to resemble the operating temperature of the hydraulic fluids, which the dual servo valve used to conduct the movement of the rudder. It also stated that under these conditions, the dual servo valve would reverse its functionality, unknown to the pilots.
MicOt83 4 months ago
Why did the crash sight of flight 93 on 9-11 look so different than these? I mean, flight 93 had hardly any debris.
99percentatheist 4 months ago
@99percentatheist (rolls eyes)
CPRailRTC 3 months ago
I can't understand why the manufacturers have to police themselves?
Ugandangirl 4 months ago
i pray when im on a plane cause this might happen. :(
nevadaafrica 4 months ago
@nevadaafrica Same,
"Dear Lord, help me go to my destination without the plane getting destroyed, crashing, and plugging to the waters, help all of us in this flight to be confortable. In Jesus' name, Amen"
Th3R3alPr0 3 months ago
35:35 why do they use a shot of a landing Airbus here ?
ryr067 4 months ago
Wow, the actors were horrible. Go watch the American version.
ClaymoreQuickScoper 4 months ago
I've travelled on many 373s. They're so wonderful. However, the sudden and tragic loss of United Airlines Flight 585 and US Air Flight 427 made me not to travel in them for years.
Kanefan701 4 months ago
@Kanefan701
373's?
thedayitriedtodie 4 months ago
@thedayitriedtodie ooops sorry, I type fast. I meant I've been on 737's.
Kanefan701 4 months ago
Why all the female pilots except for one have died in air crash investigation episodes?
Summonearth 4 months ago
This was a terrible case of air crash. A situation where the pilots had no idea as to what the hell was happening and a crash that caused the investigators to follow the same trail for 10 years !!!!
I fully appreciate the intriguing way in which this documentary has been shot.
vaishnavipj96 4 months ago
Comment removed
vaishnavipj96 4 months ago
The control is screwed up !! Pilots has no control what so ever of these planes ...
zero00tolerance 4 months ago
im surprised they ruled out terrorism
joe2grand 5 months ago
@joe2grand how could it have been...there was no sign if it at all
realanadudes 5 months ago
I've flown on a 737.... damn, I'm kinda scared of it now.
sasukeAMVcreator 5 months ago
@sasukeAMVcreator I think most of us air travellers have. Either that or the Airbus A-320/19 only continental or Larger populated countries use Larger 747's 777's or 380's, forgive me i'm not a troll just felt like commenting
Tregmedia 4 months ago
@Tregmedia Yup I agree haha. I haven't flown much myself. I've been on 737 with Flybe, 777 with American Airlines and 747 with KLM plus some other smaller planes one with a propeller, that was scary stuff for some reason haha.... I'm bored too.
sasukeAMVcreator 4 months ago
@sasukeAMVcreator Prop plane has that old romantic novelty to it and the noise, and KLM is my Countries main carrier (Koninjn Lucht Macht), if you are bored check out my channel and some of my Uploads
Tregmedia 4 months ago
When I saw video of the Flight 93 crash sight, I remember thinking how similar it looked to the Colorado Springs crash (was just a kid in Denver at the time). Not much left when a plane goes straight in. 911 truthers can suck it. RIP to passengers on both planes.
2IDSGT 5 months ago
The worst thing is everytime there is a crash near an airport, the NTSB has to fly in to the same airporrt. I want to see an NTSB investigation on an NTSB crew cash .
QuailJuice 5 months ago
If I watched an aircraft plummet, with 25 souls on board, crash in front of my eyes, I wouldn't be screaming "Crash", I wouldn't even be able to speak, i'd be stuttering, and sobbing........
KingOfTheClutch 5 months ago
@KingOfTheClutch well ur a woman then I guess you can't clutch
VoidOfEnigmas 5 months ago
@VoidOfEnigmas yea....that made sense.
KingOfTheClutch 5 months ago
@KingOfTheClutch Unless ur talking about a car clutch then a clutch is performing in admirable situation. So yes it does.
VoidOfEnigmas 5 months ago
@VoidOfEnigmas I'm a gear head, Do the math.
KingOfTheClutch 5 months ago
these valves are delicate because they have to have these tight tolerances, otherwise they could not fullfill their work; you can minimize the risk of a jam but you can never be sure that they fullfill their duty to 100 %.
But this is valid for all tech. Sytems unfor.; only Solution is to have as many redundant Systems as even possible.
tritop 6 months ago
look like windshear conditions vary dangerous for planes landing actually major thunder storm like windshear can become just as dangerous as an f-3 tornado and can do simaler damage on the ground
hdyudu 6 months ago
Some music during the introduction (~40seconds) is taken from S.T.A.L.K.E.R. the game. It doesn't just sound like it, it IS the music from STALKER. Maybe it's just a stock tune though.
ExleySC 6 months ago
At 0:33
"oh my whore"
jaypicness 6 months ago
@jaypicness it does sounds like he did say, "whore" but, he meant to say "oh my, lord" at 0:33
ValentinoCostal 6 months ago
Sämst
Thecrille1 6 months ago
10 YEARS OF INVESTIGATION EXPLAINED IN 47:29 MINS. now thats what i call an achievement.
06awaism 6 months ago
the music in the background is repetitive and very annoying....
13donkercm1 6 months ago 2
i like ur vids cuz you got the whole story in it.......i mean, the others have parts and all you have is ONE!!!! easy to watch :P
malik13ist 7 months ago
it's in reverse.. (like the rudder) it crashes the most *because* its the most popular (largest number in existence) ... not the other way around.....
terenas1986 7 months ago
They need to make an airplane sequel to "Road Head" with a hot blond co-pilot. It will be called, "Air Head".
schlumbucket 7 months ago
Why a 737 for carrying only 20 passengers? :o
MoustachesAreEpic 7 months ago
Comment removed
heartlessvietboy 8 months ago
0:33 he said oh my whore????
thenoobzors 8 months ago
@thenoobzors nice try dipshit but not even close .. clearly sounds like oh my lord
steelermia 7 months ago
@steelermia ok dipshit
thenoobzors 7 months ago
Stop calling people that name
staffordstation1997 7 months ago
Its the most popular plane because it crashes the most!
killianw68 8 months ago
@killianw68 how is an airplane going to be 'most popular' when it's crashing all the time(even though that's not true) .. you meant to say 'most notorious'
steelermia 7 months ago
The 737 is popular, because it crashes the most
killianw68 8 months ago
@killianw68 actually, it's the most popular airplane because it is so successful. It's a perfect airplane for short-medium haul flights, and has carried millions of passengers through the years. It doesn't crash the most. The aircraft that crashes the most could be the McDonnel Douglas MD-11, or the Douglas DC-10. The Boeing 737 is one of the safest airplanes in the world. I think you don't know anything about airplanes.
Trevorpilot123 8 months ago
@Trevorpilot123 The Boeing 737 is one of the safest planes in the world, that is unless you were a passenger on flights 585 or 427.
deliciousmorton 5 months ago
@deliciousmorton ummm... that is what I said...
Trevorpilot123 5 months ago
@Trevorpilot123 Yes.
deliciousmorton 5 months ago
@deliciousmorton it is a safe airplane. I really do like it, as it is one of my favorites.
Trevorpilot123 5 months ago
Technically incomplete.
The video does not explain why two extreme and simultaneous temperatures on a valve test rig cause a locked and sometimes reversed valve. Is the condition influenced by aircraft flight envelope conditions, valve design, wear or metallic particles in hydraulic fluid?
If you do not understand the trigger(s) to cause malfunction you do not understand the root cause of the problem.
jules5811 8 months ago 11
@jules5811
I didn't thinkt of that until you pointed out, good thinking mate!
megamindstone 8 months ago
@jules5811
Agreed.Investigation does seem a bit incomplete as to how those extreme conditions were achieved on 2 different days with different weathers and a 3rd potential crash.A good and tough investigation anyway.
zombiezqueen 7 months ago
Comment removed
malik13ist 7 months ago
@jules5811 true, but instead we have the knowledge of how to identify and deal with this particular anomaly whilst in the air and salvage a dire situation, i have nothing but total reassurance that now is the safest time to fly than ever before
ozzthorn258 6 months ago
how ever the NTSB in the end did order the all valve assembly to be re design which i guest fix the problem
hdyudu 6 months ago
@jules5811
as a mech. Engineer I would assume the following: These kind of valves have to be manufactured in very tight tolerances otherwise they would not work.
That means that the piston inside has to be only very little thinner than the surrounding housing.
When it comes to hard minus-Temp, the outer housing shrinks just a little while the hot oil heates the piston
first which could jam then; after a certain time also the outer housing becomes warmer and the jam disappears
tritop 6 months ago
@jules5811 You are so smart......and intentionally inappropriately technical. Can you put out there any more technical terms specific to aviation to encourage others to say WTF...?
lieslam 5 months ago
My God, no wonder it crashed, the female copilot is the same woman from ACI series "Colgan Air Flight 3407 - S10E4- " Stalled in the Sky" . So apparently this woman is always somewhere at the controls during fatal flights. We must find her and get her out of the cockpit!!!!
lieslam 5 months ago 67
@lieslam haha nice one
lasssiiii 3 months ago in playlist Air Crash Investigation/ Air Emergency/ Mayday
@lieslam
ROFL that comment made me miss the first 5 min of the video.
razortec 3 months ago
@razortec it took you five minutes to read that...
hutch356 3 months ago
@hutch356
Well, it took me 5 min ....doing your mom
razortec 3 months ago