Posts about: "New Delhi Television Ltd (NDTV)" [Posts: 11 Page: 1 of 1]ΒΆ

AAKEE
June 29, 2025, 17:25:00 GMT
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Post: 11913116
Murlidhar Mohol Interviewed (Civil aviation minister)

This is some news:


we will be able to ascertain if it was an engine problem or fuel supply issue or why both the engines had stopped functioning.
Civil Aviation Murlidhar Mohol interviewed

Subjects Fuel (All)

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za9ra22
June 29, 2025, 17:47:00 GMT
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Post: 11913122
Originally Posted by AAKEE
A slightly less sensationalised version of the same conversation reported in The Sun (posted above), with Minister of State For Civil Aviation Murlidhar Mohol, though unsurprisingly it doesn't really tell us anything new.

The potential for sabotage is clearly a valid line of investigation in the absence - so far - of any clear evidence of more prosaic malfunction or errors, but I doubt it is anything more than one of dozens of lines of attention.

Subjects: None

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PPRuNeUser485134
June 29, 2025, 19:17:00 GMT
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Post: 11913162
Originally Posted by EDLB
I find it very disconcerting that with downloaded recorders the investigators seem to have no clue how and why the dual engine shut down happened. How can they be sure that this unrecoverable problem was/is limited to the AI171 flight.
Do politicians usually get access to the data from their investigators in real time or do they have to wait for the reports like the rest of us? This chap is a junior minister, he was asked direct questions and answered appropriately but why would we conclude he has intimate knowledge of the specifics relating to the date download ?

his comments come from this interview but I don\x92t speak Hindi:
https://www.ndtv.com/india-news/sabo...-mohol-8788920

Subjects AI171

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za9ra22
June 30, 2025, 17:02:00 GMT
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Post: 11913727
Originally Posted by adfad
It's hard to find a full and reliable translation of his statement ....
Posted yesterday, this is from NDTV who conducted the interview/conversation with the Minister himself.
https://www.ndtv.com/india-news/sabo...-mohol-8788920 Their own english language version seems most likely to be accurate to the actual conversation.

This was discussed previously, and it seems highly improbable that the Minister had anything much in the way of a briefing or insider knowledge of the state of the investigation or its findings.

Last edited by za9ra22; 30th June 2025 at 17:24 .

Subjects: None

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T28B
July 05, 2025, 15:17:00 GMT
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Post: 11916419
A brief summary of what is in this article.
https://www.ndtv.com/india-news/air-...-found-8812035

A week after the crash of AI-171 on June 12, at least three Air India training pilots on the airline's Boeing 787 fleet attempted to recreate likely scenarios in Mumbai that resulted in the accident in which 260 people were killed. The pilots attempted to simulate electrical failures that could cause a dual-engine flame-out, resulting in an inability of the aircraft to climb post takeoff.

They were unsuccessful .
  1. To ensure they were accurate in their simulation scenarios, the pilots replicated the precise trim sheet data of AI-171. A trim sheet is a document used in aviation to calculate and record an aircraft's weight and balance, ensuring the center of gravity is within safe limits for takeoff, flight, and landing. The trainer-pilots also simulated the failure of a single engine, left the undercarriage of the aircraft down, and retracted the flaps of the 787 completely.
  2. What's more, an improper take-off flap configuration was also selected. This would make it even more challenging for the 787 to climb away on a single engine. Takeoff flaps are adjustable surfaces on an aircraft's wings that are extended during takeoff to increase lift, or the ability of an aircraft to climb. In all of the scenarios described here, AI-171, with a single operational engine, was able to gain altitude safely.
  3. Air India's Boeing 787-8's General Electric GEnx-1B67-K turbo-fans have been uprated to produce a significant 70,000 pounds of thrust each. These are among the most powerful engines developed for civilian aircraft in the class of Boeing 787.
  4. Pilots on Air India's Boeing 787 fleet are not trained to deal with a dual-engine failure at an altitude of less than 400 feet, as in the case of AI-171. This would be considered 'negative training', in other words, training for scenarios where the chances of successful recovery are technically not possible. Put simply, a dual-engine failure at the altitude AI-171 was flying in, would have likely resulted in a crash.






Subjects AI171  Simulation Scenarios

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B2N2
July 13, 2025, 08:47:00 GMT
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Post: 11921097
Originally Posted by CharlieMike
I\x92m 100% with you on this. Back on the original thread, whilst everyone was distracted by some extremely unlikely technical scenarios, I\x92d predicted that although it was unthinkable, the most likely cause was manually switching both fuel control switches\x85 Plane crash near Ahmedabad..

Seeing that the gear remained down after liftoff, there was CVR confusion after the event, and there was an attempt to rectify the situation\x85. I\x92m now thinking aviation is witnessing its most bizarre action-slip it\x92s ever seen and we\x92ll learn that the human automatic system is capable of making the most inappropriate and illogical responses to a given situation. I suspect fatigue and the captains sim experience of flicking switches plays a part.
You don\x92t \x93flick switches in the Sim\x94 for no apparent reason.
Even Indian sources are now reporting on the possibility of intent.

https://www.ndtv.com/india-news/air-...-probe-8864239

Subjects CVR

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CharlieMike
July 13, 2025, 08:53:00 GMT
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Post: 11921099
Originally Posted by B2N2
You don’t “flick switches in the Sim” for no apparent reason.
Even Indian sources are now reporting on the possibility of intent.

https://www.ndtv.com/india-news/air-...-probe-8864239
In my sim experience, I’ve seen so many resets where switches are flicked at lightning speed. I’m not talking about the chaps in the front seat, I’m talking about the instructor/sim operator. I’m also not suggesting this is a major cause, just agreeing it could be a possible additional factor.

Intent is a possibility but I’m leaning away from it because of the other factors…gear remained down at positive rate, the ensuing conversation and an apparent attempt to immediately rectify the situation. Much like Germanwings, I’d say a suicidal pilot would remain quiet and uncooperative once they’ve taken the unthinkable decision.

Subjects: None

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njc
July 13, 2025, 12:43:00 GMT
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Post: 11921256
Originally Posted by Mrshed
Not sure if this is helpful for anyone or not but I thought a visual view of the timeline of events might be useful, in seconds since V1.
Very helpful, thanks! One recommendation for change: since we don't know what words were used by the pilots, how about using "CVR: query cutoff" rather than "why did you cutoff"?
Originally Posted by Capn Bloggs
@Maybeitis, how about we leave the total redesign of the fuel switch locations and operation (which have been moved billions of times in thousands of aircraft without a hitch) until the final report is out.
These were deliberately moved. It wasn't a brain-fart. Unless the interim report omits crew calls which turn the scenario on it's head.
Most of your comments in the thread are extremely sensible but I take issue with both points you made in this post.

Firstly, you'll have seen plenty of things to disprove the "without a hitch" in this thread alone , and as a professional pilot you'll no doubt know of many others - including switches moved in-flight as a brain-fart , or switches moved by things like falling objects. Waiting for the final report may tell us if it would have made a difference in this case, but the lower tier of the safety pyramid (non-severe outcomes) is definitely already populated with plenty of examples of "hitches".

Secondly, I'm absolutely inclined to agree that the switches were moved deliberately (though perhaps absent-mindedly), but I'm genuinely shocked and baffled that you are already willing to assert that "It wasn't a brain-fart". Perhaps those words were typed in haste and you didn't re-read what you had written? (A brain-fart, in other words.)
Originally Posted by B2N2
You don\x92t \x93flick switches in the Sim\x94 for no apparent reason.
Even Indian sources are now reporting on the possibility of intent.

https://www.ndtv.com/india-news/air-...-probe-8864239
That interview has a series of very poorly judged comments by someone who should certainly know better, and IMHO adds nothing of value. It doesn't even acknowledge the possibility of an action-slip/brain-fart/execution-error as cause, and the interviewee voices his suspicion about a cover-up based on the identities of the speakers of key remarks not being shared at this point. Surreal.

Subjects CVR  Fuel (All)  Fuel Cutoff Switches  Pilot "Why did you cut off"  Preliminary Report  Timeline (Preliminary Report)  V1

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B2N2
July 13, 2025, 19:19:00 GMT
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Post: 11921511
Originally Posted by bill fly
... was deleted, but the response can stay
T28B
Please stop with this utter nonsense.
The throttle quadrant was replaced in 2023 for unrelated reasons. The report states so.
Crews don’t habitually places any items near those switches and ffs how would sand even get in there.
These switches were manipulated by hand and (again) even Indian media is reporting there may have been an issue with the crew.

https://www.ndtv.com/india-news/air-...-probe-8864239

Subjects: None

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sabenaboy
July 13, 2025, 20:08:00 GMT
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Post: 11921544
Originally Posted by B2N2
Please stop with this utter nonsense.
The throttle quadrant was replaced in 2023 for unrelated reasons. The report states so.
Crews don\x92t habitually places any items near those switches and ffs how would sand even get in there.
These switches were manipulated by hand and (again) even Indian media is reporting there may have been an issue with the crew.

https://www.ndtv.com/india-news/air-...-probe-8864239




Well, I'm happy to confirm that what Captain Ranganathan says in that interview makes 100% sense to me!

Subjects: None

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Stagformation
July 13, 2025, 22:16:00 GMT
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Post: 11921669
Adverse training

Originally Posted by B2N2
You don\x92t \x93flick switches in the Sim\x94 for no apparent reason.
Even Indian sources are now reporting on the possibility of intent.

https://www.ndtv.com/india-news/air-...-probe-8864239

My own experience of simulator details was that there was always a very serious risk of adverse training occurring during the reconfiguration between the elements of a sim session.

During an actual training element pilots were of course expected to take the utmost care to brief, identify, confirm and verify every switch/lever movement and operate in the safest way possible using SOPs. But usually, just to save precious sim time, during the manual re-configuration for the next element instructors would typically rattle off a very long series of selections necessitating both pilots working flat out, hands flying around the cockpit trying to keep up.

Very easy to still be re-setting the fuel control switches while the instruction coming through the headset was \x91set the gear up\x92 (or any other combination of switches and selections). Massive risk of hardwiring in a mental slip for the future. Personally I found this to be one of the most discombobulating bits of sim details, completely destroying good \x91SOP hygiene\x92 and detaching the crew from the mental model of how the aircraft came to be in it\x92s suddenly new configuration and place in the sky.

Honestly I can think of only one occasion during my whole career where a sim instructor said, \x91Ok chaps that\x92s the first part done, hands off, flight freeze is on, now motor your seats back and listen in while we brief and the sim auto sets itself for the next bit.\x92 He then carefully spent two or three minutes building up our SA before we motored forward to get on with it. Complete revelation!

Subjects Fuel (All)  Fuel Cutoff Switches

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