Air India Crash

I think he's going to spend the rest of his life asking "why?" I think shaken up is an understatement - his life is probably over in many other ways

I would expect he will be getting many flashbacks and night terrors, and maybe put off flying for life thats for sure
 
Been watching a few vids from pilots but none seem to be actual 787 pilots so they all have to make assumptions it seems.

Most seem to be leaning on flaps instead of gear up mistake.
But also most are (whilst saying the above) keeping it vague, probably as they don't want to be called out as wrong later on if thats not the issue.

They all seem to be ruling out a single engine issue, so its both or neither engine if thats the issue.

One did mention the plane had recently been overhauled. Could be some relevance to that, or not.
 
After a chip pan fire that I caused, I didn't cook hot food for a week!

I done that once as well.

Amazing how you start even cooking a little bacon the ******* alarm keeps going off constantly instantly.

But when there is an actual fire and your kitchen is full of black smoke it only goes off then.

Fortunately was a long handled pan so just picked it up and put it on the middle of the patio outside.

Kitchen needed redecorating otherwise no harm done.
 
Seems there can only really be two trains of thought:

* if you don't believe the sound in the video is the RAT, then it has to be a flaps retraction mistake
* if you do believe the sound in the video is the RAT, then it has to be dual engine failure (with whatever cause).

IMHO, I do believe quite firmly the sound heard in the higher-res video is indeed the RAT, and that the other sound will be a combination of drag noise (gear and flaps out, remember) plus the engines windmilling. They do not sound like GEnx engines on full chat.
 
It can't have been single, it continued straight and level.

I don't think it was both, there's still engine sound in the video.


I still think this.

It amazes me if this is the case that there is not super clear audible notification like "flaps down" "flaps up" "landing gear up" "landing gear down" as soon as any are moved.
I mean they could be only audible when altitude is below X.

Unless this does exist in which case how could you do it by mistake, and not correct it immediately.
I mean if you moved the wrong one, immediately heard (both the pilot and co pilot) the wrong message you could immediately revert that.

Seems there can only really be two trains of thought:

* if you don't believe the sound in the video is the RAT, then it has to be a flaps retraction mistake
* if you do believe the sound in the video is the RAT, then it has to be dual engine failure (with whatever cause).

IMHO, I do believe quite firmly the sound heard in the higher-res video is indeed the RAT, and that the other sound will be a combination of drag noise (gear and flaps out, remember) plus the engines windmilling. They do not sound like GEnx engines on full chat.

I was trying to think of my experience in taking off and how that feels.
My gut feel is that its 45-60 seconds after take off you feel the power back off somewhat from the full thrust feeling, as such surely they should have been fully open anyway. Or close to in order to achieve take off.
 
Been watching a few vids from pilots but none seem to be actual 787 pilots so they all have to make assumptions it seems.

Most seem to be leaning on flaps instead of gear up mistake.
But also most are (whilst saying the above) keeping it vague, probably as they don't want to be called out as wrong later on if thats not the issue.

They all seem to be ruling out a single engine issue, so its both or neither engine if thats the issue.

One did mention the plane had recently been overhauled. Could be some relevance to that, or not.

It can't have been single, it continued straight and level.

I don't think it was both, there's still engine sound in the video.


I still think this.

Post in thread 'Air India Crash'
https://forums.overclockers.co.uk/threads/air-india-crash.19003319/post-37857907

If you watch the video at 12 minutes, it compares the original vertical shot with a known deployed-RAT flypast. You can definitely head the buzzing sound and the complete lack of engine noise you’d expect from engines at take-off power.

For whatever reason, the engines had shutdown causing the RAT to deploy.

I’ve worked on RAT’s before, and you have to wind them up into the bay using a winch to compress the massive spring that they use to push them out into the airflow. It makes a massive bang, which is being reported by the survivor.

At this point, I’m thinking some sort of software bug.


To summarise this previous incident, the pilots selected reverse too quickly after landing, before the aircraft had completely transitioned to ‘ground mode’ and it thought it was still in the air. As a safety feature, deployment of the TR’s in the air automatically causes the engine to shut down.
 
I was trying to think of my experience in taking off and how that feels.
My gut feel is that its 45-60 seconds after take off you feel the power back off somewhat from the full thrust feeling, as such surely they should have been fully open anyway. Or close to in order to achieve take off.
That feeling after takeoff is the aircraft reaching thrust reduction/acceleration altitude. Both of which result in a slight pitching down of the nose, therefore giving you the slightly weird head feeling of experiencing just under 1G.

Barely any takeoffs are performed with true full thrust, even at hot airports with heavy weight. Modern engines are very powerful and tend to be derated for takeoff to save wear and tear
 
Seems there can only really be two trains of thought:

* if you don't believe the sound in the video is the RAT, then it has to be a flaps retraction mistake
* if you do believe the sound in the video is the RAT, then it has to be dual engine failure (with whatever cause).

IMHO, I do believe quite firmly the sound heard in the higher-res video is indeed the RAT, and that the other sound will be a combination of drag noise (gear and flaps out, remember) plus the engines windmilling. They do not sound like GEnx engines on full chat.

A mistake with flap retraction is by far and away the most common error - it has happened numerous times in the past - that doesn't mean that's what's happened here.

But from what I've seen, I really think it's some issue with both engines.
 
That feeling after takeoff is the aircraft reaching thrust reduction/acceleration altitude. Both of which result in a slight pitching down of the nose, therefore giving you the slightly weird head feeling of experiencing just under 1G.

Barely any takeoffs are performed with true full thrust, even at hot airports with heavy weight. Modern engines are very powerful and tend to be derated for takeoff to save wear and tear

I worked on RB211’s and they were a flat rated engine that could deliver 50k lbs of thrust in all conditions. That meant on the ground in cold weather you could easily get WAY more than that out of them, and on climb out you could watch the throttles gradually move forward to maintain the EPR setting as the air got thinner
 
Found this which for non plane techy types like me shows a 787 RAT

 
Looks like some rumours going round about this being done by terrorists.

That's pretty much a given for any event of this nature, there's always rumours about terrorism, along with rumours about various other things like pilot suicides etc. because there's an opportunity to spread a rumour in the information void of the immediate aftermath.
 
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