China Eastern 737-800 MU5735 accident March 2022
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A simpler view of why the recorders have been sent to the US is to apply the original manufacturers flight test data calibrations. An important activity at the time of download given that it might be a one-shot opportunity due to damage.
Many years ago the most damaged recorder analysed was that extracted from the San Louis Obispo fatal accident. Pax / engineer shot the crew, then ‘vertical dive’ suicide. NTSB had the recorder on display in the entrance of their Washington DC HQ
Many years ago the most damaged recorder analysed was that extracted from the San Louis Obispo fatal accident. Pax / engineer shot the crew, then ‘vertical dive’ suicide. NTSB had the recorder on display in the entrance of their Washington DC HQ
I wonder if this could be related.?
https://www.straitstimes.com/asia/se...light-incident
https://www.straitstimes.com/asia/se...light-incident
KUALA LUMPUR - The Civil Aviation Authority of Malaysia (CAAM) will probe the flight data of a Malaysia Airlines flight involving a Boeing 737-800 plane after it allegedly dove suddenly and flew erratically before turning back on Sunday (April 3).
CAAM chief executive Chester Voo Chee Soon said the authority would be reviewing the internal flight data monitoring system of Flight MH2664 to get to the bottom of the issue.
"Preliminary data has shown correct responses by the operating crew following the issue onboard," Captain Voo said in a statement on Tuesday.
CAAM chief executive Chester Voo Chee Soon said the authority would be reviewing the internal flight data monitoring system of Flight MH2664 to get to the bottom of the issue.
"Preliminary data has shown correct responses by the operating crew following the issue onboard," Captain Voo said in a statement on Tuesday.
Originally Posted by krismiler
https://www.flightradar24.com/data/f...h2664#2b5da11b
Originally Posted by Stick Flying
Yep, Looks unrelated to me. Unless of course you would continue after an "unexplained and uncontrolled" couple of descents.
MU5735 and SJ182 is carbon copies.
SJ had a Autothrottle failure.
AAKEE...
I can certainly see why someone would say MH2774 and this China Eastern accident are very likely unrelated (though to declare "yup, not related" at this stage is not something an aircraft accident investgator is apt to say).
But to say, "MU5735 and SJ182 is carbon copies" is a giant stretch, even for an investigator familiar with these and "similar" accidents.. Care to expand on that?
I can certainly see why someone would say MH2774 and this China Eastern accident are very likely unrelated (though to declare "yup, not related" at this stage is not something an aircraft accident investgator is apt to say).
But to say, "MU5735 and SJ182 is carbon copies" is a giant stretch, even for an investigator familiar with these and "similar" accidents.. Care to expand on that?
Originally Posted by PJ2
The Germanwings 9525 deliberate crash in the French Alps in March, 2015 may hold relevant information & datapoints regarding chip survivability. Both trajectories were near-vertical at very high speeds, (between 4 & 7 "fuselage lengths per second").
Descent rate was ~3500 fpm and took about 10 minutes from top of descent to impact. Roughly a 30° glide path, over a ground track of about 60-70 nm.
It did, of course, hit a steep mountainside, so the impact angle was closer to 70° or so - and was at high speed.
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Originally Posted by pattern_is_full
The Germanwings crash was hardly "near-vertical." Perhaps we can leave the exaggeration to the media.
Descent rate was ~3500 fpm and took about 10 minutes from top of descent to impact. Roughly a 30° glide path, over a ground track of about 60-70 nm.
It did, of course, hit a steep mountainside, so the impact angle was closer to 70° or so - and was at high speed.
Descent rate was ~3500 fpm and took about 10 minutes from top of descent to impact. Roughly a 30° glide path, over a ground track of about 60-70 nm.
It did, of course, hit a steep mountainside, so the impact angle was closer to 70° or so - and was at high speed.
Originally Posted by grizzled
AAKEE...
I can certainly see why someone would say MH2774 and this China Eastern accident are very likely unrelated (though to declare "yup, not related" at this stage is not something an aircraft accident investgator is apt to say).
But to say, "MU5735 and SJ182 is carbon copies" is a giant stretch, even for an investigator familiar with these and "similar" accidents.. Care to expand on that?
I can certainly see why someone would say MH2774 and this China Eastern accident are very likely unrelated (though to declare "yup, not related" at this stage is not something an aircraft accident investgator is apt to say).
But to say, "MU5735 and SJ182 is carbon copies" is a giant stretch, even for an investigator familiar with these and "similar" accidents.. Care to expand on that?
I should have written that the initial upset is carbon copies.
If the FR24 log is viewed in 3D both these accidents show a reduced groundspeed during the initial upset. There is a not insignificant left movement that can only be explained by a left roll. The height loss and the parallell movement during the first half roll is the same. The dive angle is not that different and the continued roll is very like each other. MU5735 began the upset with higher speed, and also did loose a little more altitude during the roll/tunnel roll.
Originally Posted by pattern_is_full
The Germanwings crash was hardly "near-vertical." Perhaps we can leave the exaggeration to the media.
Descent rate was ~3500 fpm and took about 10 minutes from top of descent to impact. Roughly a 30° glide path, over a ground track of about 60-70 nm.
Descent rate was ~3500 fpm and took about 10 minutes from top of descent to impact. Roughly a 30° glide path, over a ground track of about 60-70 nm.
So in your own words, "Perhaps we can leave the exaggeration to the media".
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pattern is full, vilas, thanks for your responses regarding my characterization of the descent - I agree with you both and my over-eager post describing the Germanwings descent has been corrected, (strike-out of "near-vertical").
The point being made in the post, "...it is encouraging to know that both recorders' chips survived the very high-speed impact with solid-rock and were readable (four days' later).", stands of course and remains encouraging, at least until we hear otherwise.
The point being made in the post, "...it is encouraging to know that both recorders' chips survived the very high-speed impact with solid-rock and were readable (four days' later).", stands of course and remains encouraging, at least until we hear otherwise.
Last edited by PJ2; 10th Apr 2022 at 00:33.
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CAAC is having a PR hard time. So you know the reason…
Originally Posted by Wannabe Flyer
It has been a while & there is a silence on the contents of the CVR & FDR.......(Definitely more than 4 days later now)
Originally Posted by Wannabe Flyer
It has been a while & there is a silence on the contents of the CVR & FDR.......(Definitely more than 4 days later now)
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Seriously ?
Originally Posted by Wannabe Flyer
It has been a while & there is a silence on the contents of the CVR & FDR.......(Definitely more than 4 days later now)
This has already been stated, and is the industry norm.
TR
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Leeham in a subscription article states that investigators are leaning towards suicide as the cause of the crash.
https://leehamnews.com/2022/04/11/ai...ce-widebodies/
China Eastern crash cause appears trending toward pilot suicide.
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Originally Posted by SteinarN
Leeham in a subscription article states that investigators are leaning towards suicide as the cause of the crash.
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Originally Posted by procede
Suicide with two other (much younger and fitter) pilots in the cockpit seems a bit unlikely to me.
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Originally Posted by INSCRINIUM
That last bullet with the suicide claim seems weirdly disconnected from the rest of the article ?
Lookup the original Leeham article in March and you'll see, they did just copy the last (bullet) line from that article. The other bullets in that article refer to other options also passed on PP.
