Air India AI 171 Crash in Ahmedabad (2 Viewers)

[Bhartiya Sainik]

Fair enough but we must keep an open mind . Not everything is a conspiracy and people have tried to ascertain sequence of events based on fact they know .
Pilot error/suicide is the most possible of the outcome but like you said if this is not the case then truth will be out in next 1 year and we will know entire truth .

I already linked the Wiki page of pilot suicides, but -
- technical procedure to shut down fuel/engines doesn't match with blunt, short 1 line CVR data reported &,
- we don't know data on medical & psychological aspects of pilots.

We need the full CVR audio, not just transcript & also FDR data.

In matters of technology i always suggest & request people to focus directly on technology rather than who says what.
Why some people are not ready to consider sensor &/or S/w glitch when already happened in past multiple times?
In general, on something outside our academic/professional domain, before expressing ourselves, we should take our time, do some homework & always communicate with a verifiable base.
Our approach & tone should be neutral, not concluding.
That way we are relaying facts.

 

[Brood Father]

I already linked the Wiki page of pilot suicides, but -
- technical procedure to shut down fuel/engines doesn't match with blunt, short 1 line CVR data reported &,
- we don't know data on medical & psychological aspects of pilots.

We need the full CVR audio, not just transcript & also FDR data.

In matters of technology i always suggest & request people to focus directly on technology rather than who says what.
Why some people are not ready to consider sensor &/or S/w glitch when already happened in past multiple times?
In general, on something outside our academic/professional domain, before expressing ourselves, we should take our time, do some homework & always communicate with a verifiable base.
Our approach & tone should be neutral, not concluding.
That way we are relaying facts.

Chances of Sensor glitch on both equipment happening at the same time and at that altitude before Auto pilot kicked in it's very astronomical low .
I hope you are appreciating where I am coming from. This is whole my perspective , if I have to bet on the reason I will place my bet on human error not sensor malfunction happening at both redundant system at the same time

 

[Bhartiya Sainik]

@SKC @haldilal @Vinash , other mods/admins,
it seems some posts have been lost.
Yesterday something was in draft buffer, today that also lost.
You guys said everything will be restored, no loss.

 

[Bhartiya Sainik]

Chances of Sensor glitch on both equipment happening at the same time and at that altitude before Auto pilot kicked in it's very astronomical low .
I hope you are appreciating where I am coming from. This is whole my perspective , if I have to bet on the reason I will place my bet on human error not sensor malfunction happening at both redundant system at the same time

Technology doesn't work on bet. 1 in bilion or trillion thing can happen in last, middle, 1st instance itself.

Crash due to sensor malfunction with every civil & military jet has happened, especially during T/o & landing.

When redundant sensors give multiple values, it confuses FMC, then which value is right? Lowest, highest, average, median, standard deviation, etc?

Static ports, pitot's tubes are HOLE based sensors, measure air pressue to derive velocity & altitude.
So these are like our nose & ears for example.
The kind of awareness our eyes give is not given by nose & ears. A deaf person can navigate better than blind person.
When some dirt, insect, etc gets into our nose, ears we immediately detect it due to nerves, hairs, But such analogous detection is not there in air data sensors AFAIK. The FCS S/w has to be made cognitive based on flight segment & ambient conditions recorded so far, to decide which sensor is likely to be reporting wrong value. So the design engineers must be doing this already, but still crashes have happened for every jet due to bad sensor data.

The MCAS issues happened due to relying on only 1 AoA sensor, bad MCAS S/w not in sync with flight segment, ambience & other sensors.
In 5gen fighters the AoA sensor is replaced with IMU (Inertial Measurement Unit)/Accelerometer, i guess redundant too. They still have static ports, probes for temperature & pressure.

In this AI-171 case during T/o we can see a lot of dust in CCTV footage,
may be it is normal ground effect created by wings & engine thrust & appears as illusion due to camera angle,
but anyways since beginning i considered the theory of sensor clogging creating multiple values, confusing FMC & EEC & either reducing RPM to sub-idle or shut down similar to TCMA incident of ANA flight (during landing).

 

[johny_baba]

In this AI-171 case during T/o we can see a lot of dust in CCTV footage,
may be it is normal ground effect created by wings & engine thrust & appears as illusion due to camera angle,

offtopic but as someone who's lived in ahmedabad,
it's helluwa dusty city like even mughal badshah Jehangir himself called it out as Gardabad (city of dust) and what not back 400 years ago

Mughal emperor Jehangir gave Ahmedabad the moniker ‘Gardabad’ | Ahmedabad News - Times of India

When Mughal emperor Jehangir first visited Ahmedabad in 1617, he was crestfallen. In the Mughal annals, Jehangir says he had heard good things of the

timesofindia.indiatimes.com

and fucker was indeed right about it, man
...even with windows closed dust and dander makes into your homes easily, and air feels quite dry

so i think that dust in air is just your everyday air and environment of the city and not something suspicious

 

[Miss Firing]

'Switch could be at the same point': Expert says electrical malfunction may have caused fuel switch cut off before AI plane crash

According to the expert, an electrical malfunction could also have resulted in the aircraft’s fuel switches being cut off soon after takeoff.

www.firstpost.com

'Switch could be at the same point': Expert says electrical malfunction may have caused fuel switch cut off before AI plane crash​