Air India AI 171 Crash in Ahemdabad (2 Viewers)

[Vinash]

Air India needs to be scrutinized heavily.

Air India staffers who exposed a Boeing 787 Dreamliner malfunction in 2024 were threatened, told to change their statements, and fired after they refused.​

Whistleblower Crew Allege Cover-up in 2024 Dreamliner Door Glitch, Seek Prime Minister’s Intervention - Thar Tribune

Two former Air India flight attendants have approached Prime Minister Narendra Modi, alleging that they were terminated after refusing to alter their

thartribune.com

 

[Bhartiya Sainik]

View: https://youtu.be/bHTT9gIit0A?si=lHazBl5o6ZeeGxYI

As per him, flight may be overloaded. And one engine may have failed due to bird strike or something . And then it couldn't get sufficient speed and height and crashed.

Nice video. I also saw it yesterday morning in my YT feed.
Gaurav Taneja a.k.a. "Flying Beast", ex-Air Asia pilot, whistle blower of many things incl. high flaps/speed landing.
He covered many theories.
They simulated the crash in actual hard simulator & they got stunned & froze. But real life scenario is different.

There are many other videos also including air crash investigations where, although at high altitude, pilots with dual engine failure had far more chance of recovery & did recover by restarting engines (fuel switch behind throttle & engine start switch on overhead panel) after checking conditions of fire, electricity, hydraullics, etc.

But in this case, even in 1st half of trajectory (16 seconds), pilots must have checked all faults on MFDs & suppose even if they tried restarting engines with battery + RAT, remaining 16 seconds may not be enough to achieve thrust to level & pull up. In my limited knowledge i guess the throttle cannot be pushed full too fast immediately. And the city dwellings also didn't give much chance, the open areas & roads probably obscured by trees.

Air India needs to be scrutinized heavily.

Air India staffers who exposed a Boeing 787 Dreamliner malfunction in 2024 were threatened, told to change their statements, and fired after they refused.​

Whistleblower Crew Allege Cover-up in 2024 Dreamliner Door Glitch, Seek Prime Minister’s Intervention - Thar Tribune

Two former Air India flight attendants have approached Prime Minister Narendra Modi, alleging that they were terminated after refusing to alter their

thartribune.com

Gaurav Taneja also said in many videos that corupted people in Air Asia later got promoted rather than penalized.

Just imagine, such corrupted people could be our next door neighbor & we may never suspect them or come to know what conspiracy, cover-up they may be involved in their office.

Who's right, who'wrong, whom to believe?

 

[angryindian]

View: https://youtu.be/bHTT9gIit0A?si=lHazBl5o6ZeeGxYI

As per him, flight may be overloaded. And one engine may have failed due to bird strike or something . And then it couldn't get sufficient speed and height and crashed.

No, he says subtly, that airlines usually carry more weight than what is recorded in the books.He mentions that the 787 has a max take off weight of 225 tonnes and that plane that day was carrying 205 tonnes.

In engineering,there is a thing called as "FACTOR OF SAFETY". Just because the max take off weight is 225 tonnes,it does not mean that you can carry anywhere near max weight. You have to keep a margin, say for example 80-85% of the max take off weight.

That day the temperature was around 43°C. The Asphalt runway on which the plane was standing would be easily around 70-75 °C. The hotter the climate,the lower the air density, resulting in reduced engine thrust and wing lift.Ideally,they should have been carrying a much lower load

 

[Bhartiya Sainik]

No, he says subtly, that airlines usually carry more weight than what is recorded in the books.He mentions that the 787 has a max take off weight of 225 tonnes and that plane that day was carrying 205 tonnes.

In engineering,there is a thing called as "FACTOR OF SAFETY". Just because the max take off weight is 225 tonnes,it does not mean that you can carry anywhere near max weight. You have to keep a margin, say for example 80-85% of the max take off weight.

That day the temperature was around 43°C. The Asphalt runway on which the plane was standing would be easily around 70-75 °C. The hotter the climate,the lower the air density, resulting in reduced engine thrust and wing lift.Ideally,they should have been carrying a much lower load

Ofcourse safety margin should be kept but jets are made & tested with MTOW in different climate conditions.
Northern Africa, Middle East have much hotter climate, where all types of jets fly.
AFAIK, Air India allows more luggage than other international carriers.
91% load can be a concern but how can it cause both engines losing thrust or power same time?

 

[Brood Father]

Air India is operating a Clown show

‘Shaking, hissing, growling door mid-air’: Air India Boeing 787 flight to Hong Kong spooks flyers; crew plugs gap with napkins to 'fix' issue | Mumbai News - Times of India

An Air India flight from Delhi to Hong Kong experienced a mid-air door malfunction, causing unsettling noises and shaking. Flight attendants used napk

timesofindia.indiatimes.com

 

[shade2]

Air India is operating a Clown show

‘Shaking, hissing, growling door mid-air’: Air India Boeing 787 flight to Hong Kong spooks flyers; crew plugs gap with napkins to 'fix' issue | Mumbai News - Times of India

An Air India flight from Delhi to Hong Kong experienced a mid-air door malfunction, causing unsettling noises and shaking. Flight attendants used napk

timesofindia.indiatimes.com

Boeing banaye tatti planes, gaali khaye Air India

 

[bakofbakchod]

View: https://youtu.be/bHTT9gIit0A?si=lHazBl5o6ZeeGxYI

As per him, flight may be overloaded. And one engine may have failed due to bird strike or something . And then it couldn't get sufficient speed and height and crashed.

impossible to happen because the flight crashed "Straight". there is no evidence on any of the videos so far that supports the plane having only 1 engine working at any point in time. from the videos it is as if both engines lost power simultaneously. there wasnt any sound of engines running either

>one engine may have failed due to bird strike or something

unless the pilot immediately (mistakenly) shut off the wrong engine (possible as it happened before in TransAsia Airways Flight 235), i doubt this is the reason

 

[Bhartiya Sainik]

View: https://www.youtube.com/watch?v=VswFVpyg5ew

This video highlights another user, probably into aircraft maintenance, telling that -

- There are known cases of 787 & 777 of total electrical failure.
- FSOV (Fuel Shut Off Valve) are spring-loaded & not powered by engine's PMA (Permanent magnet Alternator) but by aircrafts DC system.
- Aircraft loses electricity, FSOV shuts off.
- FSOV designed to protect airframe, not engines.
- Boeing thinks it is safer to shut down engine than to keep feeding fuel into a potential fire.
- BUT, for both FSOVs to close, A/c should lose both AC buses, DC buses & Battery backup.
- RAT would take 2 seconds to deploy & start giving electrical power
- when switching power sources, system can behave unpredictably - especially if one source is competing with RAT or is unstable, causing delays & closing FSOVs.

Well, we do notice in homes, offices, when voltage fluctuates then switching from main power to UPS/Invertor can be some times like ping-pong. But a S/w controlled switching can keep the power to backup/secondary only.

- So in 787 the FSOVs power is from DC but not with DIRECT battery backup, like in A320 for example. It is INDIRECT, the batteries support DC but FMC prioritizes flight critical systems 1st. If power limted or unstable then less critical FSOV can be deprioritized.
- From 2015-2020, 3 ADs (Air-worthyness Directive) were issued.

- 787 continiously powered for 248 days can lose all AC power due to GCUs (Generator Control Unit) going into fail-safe mode, the S/w counter is local to GCU.​

- On ground, power cycling or reboot of main electrical power &/or to Contol Modules required.​

- All 3 Control Modules might reset together if powered for 22 days.​

- Stale data monitoring function of Common Core system (CCS) may be lost if powered for 51 days, leading to loss of Common Data N/w (CDN) message age validation, combined with CDN switch failure. IDK what is this.​

- Google search on FSOV, in the video show that FSOV will close when -

- Inlet or outlet temp. beyond limit.​

- Bleed air pressure is lost, probably due to compressor stall, fire, etc.​

- electricity to FSIV lost.​

- ANA 787 incident where Over-thust protection by TCMA or Thrust Control Malfunction Accommodation system. I mentioned this already.

QUESTIONs:
- In those known cases, what caused a massive electrical failure taking out 3 redundant supplies - AC, DC, batteries?
- Why EEC & its PMA doesn't have at least secondary control over FSOV?
- Why the electrical switching in such critical machine is not instantanious?
- How can FSOV be deprioritized when A/c needs fuel to fly?
- Does the FMC check the GCU counter & Control Modules before flight, detect interception with flight, display caution on MFD?
- Is GCU connected to EEC or no need?
- What powers GCU - A/c's AC or DC, EEC's PMA?
- We now that battery can be shut down by cockpit overhead panel. Perhaps after 1 day of duty the A/c might be given few hours of rest, IDK. So, does the maintenance crew power cyce the main power or the sub-systems?
- Did the ground crew address th CDn issue.
- All types of planes fly in MEA region (Middle-Eastm Africa) with hotter climate. So what about inlets & outlet temp limits there?