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FL370 Officeboy
2025-06-15T18:53:00 permalink Post: 11902716 |
The biggest news site in Greece claims to have the results of a kind of preliminary report from India AAIB which say that as the plane rotated, the pilot's seat malfunctioned (broken pin) and went suddenly far back forcing the captain to accidentally lower the thrust lever as he already had his hand on it and despite the co-pilots effort to help increase the thrust it was already to late to avoid the stall. I dont believe they would have posted something as serious as this without any credible source cause they are supposed to be a serious news outlet but you never know when stupidity takes over validity. Source is the protothema dot gr site
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LTC8K6
2025-06-15T18:57:00 permalink Post: 11902719 |
The biggest news site in Greece claims to have the results of a kind of preliminary report from India AAIB which say that as the plane rotated, the pilot's seat malfunctioned (broken pin) and went suddenly far back forcing the captain to accidentally lower the thrust lever as he already had his hand on it and despite the co-pilots effort to help increase the thrust it was already to late to avoid the stall. I dont believe they would have posted something as serious as this without any credible source cause they are supposed to be a serious news outlet but you never know when stupidity takes over validity. Source is the protothema dot gr site
2 users liked this post. |
fdr
2025-06-15T18:58:00 permalink Post: 11902721 |
The biggest news site in Greece claims to have the results of a kind of preliminary report from India AAIB which say that as the plane rotated, the pilot's seat malfunctioned (broken pin) and went suddenly far back forcing the captain to accidentally lower the thrust lever as he already had his hand on it and despite the co-pilots effort to help increase the thrust it was already to late to avoid the stall. I dont believe they would have posted something as serious as this without any credible source cause they are supposed to be a serious news outlet but you never know when stupidity takes over validity. Source is the protothema dot gr site
The proposition that is floated is that the pilot does not pull back on the control column, which he is holding onto with both hands as his seat slides backwards like a caricature of a bad Cessna 180 seat rail, that is plainly obvious from the pitch attitude of the aircraft, yet grabs lustily a double handful of thrust levers and holds onto those until meeting Ganesh in the next life? Greek papers appear to be as rigorous and incisive in their cognition as the Daily Telegraph. Golly. Seats: electric. RAT deployment... presumably the hapless pilot doesn't grab the control column, or the thrust levers, just grabs both fuel control switches instead???? Do any reporters bother to read what they write? 9 users liked this post. |
limahotel
2025-06-15T19:24:00 permalink Post: 11902747 |
The biggest news site in Greece claims to have the results of a kind of preliminary report from India AAIB which say that as the plane rotated, the pilot's seat malfunctioned (broken pin) and went suddenly far back forcing the captain to accidentally lower the thrust lever as he already had his hand on it and despite the co-pilots effort to help increase the thrust it was already to late to avoid the stall. I dont believe they would have posted something as serious as this without any credible source cause they are supposed to be a serious news outlet but you never know when stupidity takes over validity. Source is the protothema dot gr site
1 user liked this post. |
EnerJi
2025-06-15T19:29:00 permalink Post: 11902750 |
The biggest news site in Greece claims to have the results of a kind of preliminary report from India AAIB which say that as the plane rotated, the pilot's seat malfunctioned (broken pin) and went suddenly far back forcing the captain to accidentally lower the thrust lever as he already had his hand on it and despite the co-pilots effort to help increase the thrust it was already to late to avoid the stall.
The Ipeco seats fitted on the 787 (and other airframes) have had numerous problems and numerous Airworthiness Directives to correct issues of uncommanded movement. They are not exclusively electric (i.e. can also be manually adjusted), and presumably there is some sort of pin or locking mechanism to hold them in place and this mechanism (at least in original form or if not corrected) has been known to fail. The most famous incidents involving the 787 resulted in uncommanded forward movement of the seat, resulting in inadvertent depressing of the yoke and an unexpected pitch down. Other Ipeco seats have been implicated in unexpected forward AND rearward movements. The FAA published an AD just a couple of days ago related to an Ipeco seat doing just that (different model seat not on Boeing planes, FWIW). You're probably right. Until we start getting reliable information from official sources it's wise to take the theories of a single news outlet with a huge chunk of salt. |
OldnGrounded
2025-06-16T02:15:00 permalink Post: 11903057 |
Folks, if an interim report or other official communication from the investigation is released, it will almost certainly come from India's AAIB or at least be posted to its site. So checking there before posting something like that here would be a really good idea.
https://aaib.gov.in/ Admin note: the url is correct, app are the Government allow advertising on their sites! SPlot 2 users liked this post. |
Propellerhead
2025-06-16T09:06:00 permalink Post: 11903291 |
Boeing and the AAIB only arrived at the scene this morning. Black boxes were recovered on Friday.
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Pinkman
2025-06-16T09:17:00 permalink Post: 11903301 |
With the information we have accumulated so far, is the following a possible scenario? Normal departure up to VR, then a total electrical failure at lift off (possibly as the ground/air logic switches to air.) All hydraulics lost and cabin lights flicker plus RAT deploys. All fuel boost pumps fail so engines only have suction feed. Engines roll back. The aircraft seems to me to have gone too far to have suffered a total loss of thrust at lift off. There must have been some energy being provided by the engines? Such a system failure "can't happen", of course but nothing is impossible!
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Lord Bracken
2025-06-16T09:24:00 permalink Post: 11903304 |
1 user liked this post. |
Lord Bracken
2025-06-16T09:34:00 permalink Post: 11903315 |
Quick example, EK 521 accident in DXB:
1.11 Flight Recorders The Aircraft was equipped with a Honeywell sold-state flight data recorder (SSFDR) and an L-3 Communication cockpit voice recorder (CVR). Both flight recorders were found mounted in their original locations on the Aircraft, with external signs of prolonged exposure to elevated temperatures. However, temperature indicators within each crash-survivable memory unit indicated that the memory components themselves had not been exposed to significantly elevated temperatures. The flight recorders were sent to the Air Accidents Investigation Branch (AAIB) facility in the United Kingdom for data retrieval in the presence of the Investigation Committee.
1.11. Flight Recorders 1.11.1. The aircraft was equipped with solid-state DFDR and solid-state CVR. DFDR and CVR were recovered from the accident site and taken to BEA, France by Investigator In-charge (IIC) from AAIB, Pakistan on 1st June, 2020. Despite having crash and heat effects, both recorders were successfully downloaded by BEA experts.
4 users liked this post. |
OldnGrounded
2025-06-16T02:15:00 permalink Post: 11903737 |
Folks, if an interim report or other official communication from the investigation is released, it will almost certainly come from India's AAIB or at least be posted to its site. So checking there before posting something like that here would be a really good idea.
https://aaib.gov.in/ Admin note: the url is correct, app are the Government allow advertising on their sites! SPlot |
Propellerhead
2025-06-16T09:06:00 permalink Post: 11903753 |
Boeing and the AAIB only arrived at the scene this morning. Black boxes were recovered on Friday.
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gearlever
2025-06-17T08:27:00 permalink Post: 11904073 |
"On Jun 17th 2025 an official, a former Air India Captain trained by the Captain of the accident flight, stated, that the CVR has been successfully read out, the voices on the CVR are very clear. It is becoming gradually clear from the newly emerging evidence that there was probably zero negligence in the cockpit, the crew did not give up until the very last moment. The probability of a technical cause is high. A preliminary report by India's AAIB can be expected in a few days."
AvH 10 users liked this post. |
geo10
2025-06-17T08:42:00 permalink Post: 11904093 |
"On Jun 17th 2025 an official, a former Air India Captain trained by the Captain of the accident flight, stated, that the CVR has been successfully read out, the voices on the CVR are very clear. It is becoming gradually clear from the newly emerging evidence that there was probably zero negligence in the cockpit, the crew did not give up until the very last moment. The probability of a technical cause is high. A preliminary report by India's AAIB can be expected in a few days."
AvH |
Gary Brown
2025-06-17T09:35:00 permalink Post: 11904142 |
"On Jun 17th 2025 an official, a former Air India Captain trained by the Captain of the accident flight, stated, that the CVR has been successfully read out, the voices on the CVR are very clear. It is becoming gradually clear from the newly emerging evidence that there was probably zero negligence in the cockpit, the crew did not give up until the very last moment. The probability of a technical cause is high. A preliminary report by India's AAIB can be expected in a few days."
AvH If this report is accurate, I'd hazard that a specific maintenance issue has been identified. If the "technical cause" was a system or parts failure or fault, then I'd expect a lot of similar 787s to have been grounded by now. Last edited by Gary Brown; 17th Jun 2025 at 10:04 . Reason: Clarity 3 users liked this post. |
Musician
2025-06-17T09:56:00 permalink Post: 11904155 |
Bird strike ruled out
It seems pretty unlikely that a bird strike that took out both of those
very big
engines simultaneously would not have been fairly obvious in ways that nearby observers (e.g., the crew, ATC, airport personnel?) would have noticed. Possible, of course, but I don't think we've seen any evidence that points in that direction.
Also, I expect the airport would've sent a car out to check the runway for evidence. Since we agree that the engine failure occurred near rotation, and that rotation occured well inside the runway ( see e.g. fdr here , or the granular ADS-B data), that car would've encountered a bloody mess, and we'd all know about it by now.
Also, for what it's worth, the
Times of London
June 15 story "
New clues point to engine failure for cause of Air India plane crash
" cited here in the closed thread includes this:
The Indian authorities indicated that a bird strike has been ruled out.
\x95 first, we have seen fake reports circulating; \x95 secondly, News18 rates badly on mediabiasfactcheck.com: "Launched in 2005, CNN-News18 (formerly CNN-IBN) is an English-language Indian news television channel based in India. We also rate them Questionable based on a poor fact-checking record with numerous false claims." That leads me to consider that this "exclusive" might be sloppy reporting based on a fake\x97I have no way to know whether it is legitimate or not. At this point, I feel we can only rely on information being official if it's published through an official website, or if there's independent reporting or a video clip from an official press briefing. I do believe the accident was not caused by an animal strike, for many reasons. But I wouldn't believe it based on unsourced reporting alone. 4 users liked this post. |
Squawk7700
2025-06-17T10:32:00 permalink Post: 11904185 |
"On Jun 17th 2025 an official, a former Air India Captain trained by the Captain of the accident flight, stated, that the CVR has been successfully read out, the voices on the CVR are very clear. It is becoming gradually clear from the newly emerging evidence that there was probably zero negligence in the cockpit, the crew did not give up until the very last moment. The probability of a technical cause is high. A preliminary report by India's AAIB can be expected in a few days."
AvH This comment is from a low-budget news source. 1 user liked this post. |
galaxy flyer
2025-06-17T13:14:00 permalink Post: 11904294 |
"On Jun 17th 2025 an official, a former Air India Captain trained by the Captain of the accident flight, stated, that the CVR has been successfully read out, the voices on the CVR are very clear. It is becoming gradually clear from the newly emerging evidence that there was probably zero negligence in the cockpit, the crew did not give up until the very last moment. The probability of a technical cause is high. A preliminary report by India's AAIB can be expected in a few days."
AvH |
PuraVidaTransport
2025-06-17T17:17:00 permalink Post: 11904484 |
Having gone through every possible way the aircraft (or those in it) can shut down both engines, thought it would be helpful to look at what investigators have looked at/for in a somewhat similar case. Perhaps it will move the discussion to more unplowed ground.
Going through AAIB Bulletin10/2008 from the British AAIB in the BA 38 case. Before finding the exact cause, they had investigated the following with findings in quotes: 1. General aircraft examination - "no pre‑existing defects with the electrical systems, hydraulics, autoflight systems, navigation systems or the flying controls." 2. Spar valves - "Extensive testing to induce an uncommanded movement, that remained unrecorded, could not identify any such failure modes." 3. High Intensity Radiated Field (HIRF) and Electro- Magnetic Interference(EMI) - "There is therefore no evidence to suggest that HIRF or EMI played any part in this accident." 4. Fuel System - "The examination and testing found no faults in the aircraft fuel system that could have restricted the fuel flow to the engines." 5. Engines - "No pre‑existing defects or evidence of abnormal operation were found with the exception of signs of abnormal cavitation erosion on the delivery side of both HP pumps. Some small debris was recovered from the left FOHE inlet chamber but this would not have restricted the fuel flow." 6. Fuel Loading/Fuel Testing - "No evidence of contamination was found." "The properties of the sampled fuel were also consistent with the parameters recorded in the quality assurance certificate for the bulk fuel loaded onto G‑YMMM at Beijing." 7. Water in Fuel - "It is estimated that the fuel loaded at Beijing would have contained up to 3 ltr (40 parts per million (ppm)) of dissolved water and a maximum of 2 ltr (30 ppm) of undissolved water (entrained or free). These quantities of water are considered normal for aviation turbine fuel." Knowing the history of this flight, the previous flights and the climate that day, I left out all the discussion in the report of fuel waxing/ice. That seems as irrelevant as 'vapor lock'. I too am beginning to think this will be, as an earlier poster termed it, a "unicorn" event. Source: Bulletin_10-2008.pdf 5 users liked this post. |
Lord Bracken
2025-06-17T18:13:00 permalink Post: 11904527 |
Absolutely. This confidence that the EAFR has already been read is misplaced. It\x92s a specialist piece of equipment and probably can\x92t even be downloaded in India. It\x92s most likely on its way to the NTSB, the BEA or the AAIB (UK) for analysis which will be done under strict conditions (for obvious reasons).
2 users liked this post. |