What I don't get is why people are not using seatbelts. The only time I'm not using it is when I'm on the way to and from the bathroom. If I'm seated I'm using the seatbelt.
This. Clear Air Turbulence can strike at any time, and you - as in your body - can get seriously damaged even with moderate turbulence. Few people have ever seen severe or extreme turbulence, including the flight crews, but that can happen as well.
I was under the impression that seatbelts are basically mandatory at all times. On my recent turkish airlines flight the safety video requested you put it on and leave it on, ans the staff would come by and ask you to put your seatbelt on, even when theres no turbulence.
The "seat belt" indicator light should actually be changed to "dont get up and walk around"
Same here, but most passengers don't understand the issue. They think turbulence means "a bumpy flight" when it really means "you will -- without warning -- be slammed against the ceiling and then against the floor, and then against the ceiling again for good measure."
I wear masks in public and I use seatbelts on airplanes, but that's not the shortest path to the boss ape of the town status, and I would guess a lot of people care more about that than their own life.
Bathroom, stretching legs, getting something from overhead locker, and of course the cabin crew. I could see at least 20 people at a given time doing one of those things.
I think the seatbelt-sign is outdated. Somehow it should be made clear that if a sign is on, it is not allowed to stand up and move around, and the general rule is that the seatbelt must be locked while sitting.
> What I don't get is why people are not using seatbelts.
The terrible UX doesn't help. There is a seatbelt icon on the sign, they announce it as "fasten seatbelt sign", which makes it sound like when it is off you don't have to have it fastened. But it really should be "remain seated" sign.
Also some people don't wear seatbelts in cars as some idiotic macho thing. I assume there is no helping those.
After the recent incidents, I’d love to see zip line style safety lines in planes. When you get up to use the lavatory, you’d connect your carabiner to the aisle ceiling and floor lines to keep you level in case of a sudden movement.
Latam is Chilean. I am not as well traveled in all SA countries but the exposure I have had suggested that seatbelts in cars are fairly optional still, I suspect on a plane you have less incentive.
Not turbulence related. Plane (Boeing 787-9) lost instrumentation according to the captain, followed by rapid loss of altitude. When instrumentation came back, flight continued to a safe landing. 12 people were sent to hospital. S always, see avherald.com for the most reliable, non-speculative info.
I disagree, the physics of large planes make extreme movements on the plane's z-axis like this via just it's control surfaces near impossible. All the control surfaces can really do is tilt the plane, which in absolute terms will change verticality but relative to the plane is still a longitudinal acceleration. The only thing that can overwhelm the momentum of something with the mass of a small building fast enough to cause injury like this is turbulence.
That being said having the plane lose instruments from the turbulence is a major problem that needs to be fixed
Edit: Rereading the article I did notice a passenger comment about the plane going in a nosedive, which would match the scenarios the others below me have replied with that dont involve turbulence. Always thought the airframe couldn't survive actively maneuvering at such extremes on big jets like that, guess I was wrong.
Let's rephrase that as, this is the story as relayed by one of the passengers to RNZ. If non-speculative info is what you're after, perhaps it's better to wait for the official report.
This seems to be attributed to a technical problem and not turbulence so far. Probably should be a bit skeptical about any explanation this early, but I'm wondering which systems would be powerful enough to cause something like this.
For example, would a pilot be able to manually fly the airplane and cause this kind of incident? Or would the control surfaces of the plane be able to cause this assuming that any safety limits that restrict movement were not working?
It's very easy to get to slightly below 0g by just pushing on the stick or yoke, and that would be enough to cause what the passengers describe here. You could even get well below 0g. Almost all turbulence of the sort that you can experience in flight are not even 10% of the durability limits of the airframe.
EDIT: I was also thinking about "well why should the airplane allow the pilot for such movements then?". And I think a good analogy is the brakes in your car - they do allow for maximum breaking, yet when was the last time you actually pushed it to the max?
(And note that this is 100% speculation, I just wanted to highlight that the pilot can cause such negative acceleration on their own)
If the captain of this LATAM flight didn't report that all systems went down for a short while, I'd bet some money on a malfunctioning ADIRU [0]. The Wikipedia page even includes a nice list of incidents caused by it, mostly with similar results.
> would a pilot be able to manually fly the airplane and cause this kind of incident?
As a parent and car pilot I used my brake once to teach my children the necessity of wearing seatbelts. You actually do not need to break hard to let them fly around I noticed.
It isn't all that far-fetched, really. Venus is the brightest object in the night sky after the Moon.
... as to _how_ bright it can be - I was once in an area with dark skies, setting up my telescope just before sunset. After dark, I was taking in the beauty of the Cigar Galaxy and then looked up and behind from the scope. My eyes were assaulted by a bright light on the top of the hill behind, and I was cursing the idiot who had turned that light on, when I realized that it was Jupiter, freshly risen above the hill. Jupiter is not as bright as Venus.
On that night, Venus, had it been visible, would've been blindingly brilliant. Flying 10 Km above the ground, with no light pollution, I'm not surprised that the Pilot mistook Venus for an aircraft headlight.
I don't understand why so many people refuse to wear seatbelts unless demanded. Had everyone been buckled in I doubt anyone would have been injured. You are in a metal tube doing almost the speed of sound tens of thousands of feet in the air. Keep the belt on.
If you have to get up, keep a hand on something. An airliner cannot pull serious negative gs. You aren't going to be "pinned" to the ceiling. But you should hold to something solid just in case things get a little floaty for a few seconds. Most longtime fliers have witnessed their drinks lift of their trays. The floating doesn't hurt. The issue is when things stop floating and come crashing down.
We had the same incident around 2007-2008 with China Airlines. The scary point that it happened almost the same place, from Taiwan to Bali about 1 hour before the landing.
Interestingly, this flight (Sydney-Santiago, via Auckland) is one of a few that many flat-earthers insist does not exist, since it contradicts a theory they have. They'd plot the paths of long-distance flights on a polar azimuthal equidistant projection of earth[0], and note that some one-stop flights look like a straight line on this projection. But those which don't look like a straight line (i.e. that suggest they're wrong) are dismissed as nonexistant, and part of the greater globe earth conspiracy.
I flew many times between South America and NZ/Australia (and once from LA to Sydney, one of the longest flights you can get), including this exact flight, and find that's hilarious.
The plane transited from an air stream (of whatever velocity/vector) into one descending vertically at high speed = instant down elevator = passengers in free fall as plane descends = impact roof hard/soft. Soon exit the stream and get used to it = fall down hard from 7-8 feet in random attitude.
Down is the worst, a vertical up = pressed into seat and already standing.
Pilot might have had a warning or inkling = faster seat belts/sit. In a down acceleration like this all loose objects are affected = missiles, a laptop can hit you hard.
Back in the old days, they called these 'air pockets' - lacking velocity they were less dangerous than these occurrences at modern speeds where planes are going at 500-600 miles/hour and the transition is virtually instantaneous.
Thanks for providing your perspective - Why don't we hear about these as often? Is there tech to avoid these air pockets? Was there some kind of negligence involved or should I be more cautious on planes about leaving my loose belongings lying around?
Tor3|2 years ago
H8crilA|2 years ago
beAbU|2 years ago
The "seat belt" indicator light should actually be changed to "dont get up and walk around"
lm28469|2 years ago
I've seen aftermath videos and photos, I'm not taking my chances
thelastparadise|2 years ago
dreamcompiler|2 years ago
numpad0|2 years ago
ta1243|2 years ago
qwertox|2 years ago
progbits|2 years ago
The terrible UX doesn't help. There is a seatbelt icon on the sign, they announce it as "fasten seatbelt sign", which makes it sound like when it is off you don't have to have it fastened. But it really should be "remain seated" sign.
Also some people don't wear seatbelts in cars as some idiotic macho thing. I assume there is no helping those.
benjaminwootton|2 years ago
jgalt212|2 years ago
koolba|2 years ago
infecto|2 years ago
rsynnott|2 years ago
I have noticed that it does seem to have gotten more common to just leave them on for the duration of the flight, in the last couple of decades.
jwildeboer|2 years ago
tomatotomato37|2 years ago
That being said having the plane lose instruments from the turbulence is a major problem that needs to be fixed
Edit: Rereading the article I did notice a passenger comment about the plane going in a nosedive, which would match the scenarios the others below me have replied with that dont involve turbulence. Always thought the airframe couldn't survive actively maneuvering at such extremes on big jets like that, guess I was wrong.
alamortsubite|2 years ago
telesilla|2 years ago
867-5309|2 years ago
>it came back all of the sudden
top quality writing there..
unknown|2 years ago
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nomilk|2 years ago
> Boeing 787-9 Dreamliner
(Boeing, but not the 737 Max that has been in the headlines the past few years)
Source: https://www.aljazeera.com/amp/news/2024/3/11/50-people-injur...
taspeotis|2 years ago
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ulfw|2 years ago
fabian2k|2 years ago
For example, would a pilot be able to manually fly the airplane and cause this kind of incident? Or would the control surfaces of the plane be able to cause this assuming that any safety limits that restrict movement were not working?
H8crilA|2 years ago
EDIT: I was also thinking about "well why should the airplane allow the pilot for such movements then?". And I think a good analogy is the brakes in your car - they do allow for maximum breaking, yet when was the last time you actually pushed it to the max?
(And note that this is 100% speculation, I just wanted to highlight that the pilot can cause such negative acceleration on their own)
stby|2 years ago
[0] https://en.wikipedia.org/wiki/Air_data_inertial_reference_un...
j-a-a-p|2 years ago
As a parent and car pilot I used my brake once to teach my children the necessity of wearing seatbelts. You actually do not need to break hard to let them fly around I noticed.
p_l|2 years ago
johnny_canuck|2 years ago
https://www.cnn.com/2012/04/17/travel/canada-disoriented-pil...
mangamadaiyan|2 years ago
... as to _how_ bright it can be - I was once in an area with dark skies, setting up my telescope just before sunset. After dark, I was taking in the beauty of the Cigar Galaxy and then looked up and behind from the scope. My eyes were assaulted by a bright light on the top of the hill behind, and I was cursing the idiot who had turned that light on, when I realized that it was Jupiter, freshly risen above the hill. Jupiter is not as bright as Venus.
On that night, Venus, had it been visible, would've been blindingly brilliant. Flying 10 Km above the ground, with no light pollution, I'm not surprised that the Pilot mistook Venus for an aircraft headlight.
Edit: clarity
sandworm101|2 years ago
If you have to get up, keep a hand on something. An airliner cannot pull serious negative gs. You aren't going to be "pinned" to the ceiling. But you should hold to something solid just in case things get a little floaty for a few seconds. Most longtime fliers have witnessed their drinks lift of their trays. The floating doesn't hurt. The issue is when things stop floating and come crashing down.
peter7012|2 years ago
Jamie9912|2 years ago
harshbutfair|2 years ago
KingOfCoders|2 years ago
itsthecourier|2 years ago
12 injured into the ceiling in this flight, kind of looks like a check of who was and wasn't wearing the belt
fortran77|2 years ago
627467|2 years ago
"Boeing: too big to be grounded"
smcl|2 years ago
[0] - https://en.wikipedia.org/wiki/Azimuthal_equidistant_projecti...
brabel|2 years ago
SirHound|2 years ago
rsynnott|2 years ago
unknown|2 years ago
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aurizon|2 years ago
sp332|2 years ago
djtango|2 years ago
unknown|2 years ago
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unknown|2 years ago
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Schroedingers2c|2 years ago