Civil Aviation Development & Discussion

[pravula]

There are two boxes, AFAIK, they both collect the same data points (its designed in that way to increase the chances of finding atleast one). In this event, both were recovered, so I would expect only one will be unsealed initially and the second one will be used to validate the conclusions.

[chetak]

There are two boxes, AFAIK, they both collect the same data points (its designed in that way to increase the chances of finding atleast one). In this event, both were recovered, so I would expect only one will be unsealed initially and the second one will be used to validate the conclusions.

pravula ji,


The opening of the black box and all connected processes there after are video graphed by multiple high definition cameras covering different views from different angles and time stamped, accompanied by running commentary in sync with the video.

[A_Gupta]

“Following the tragedy of Air India Flight 171 in Ahmedabad, which took place on June 12, India's principal aviation safety watchdog, the Directorate General of Civil Aviation (DGCA), has ordered the termination of three separate Air India employees due to lapses in operational safety.”
https://simpleflying.com/authorities-or ... l%20safety.

[vera_k]

Missed this report. IMO this explains why so many AI flights are seen to be taking no risks with technical issues.

Crash: India B788 at Ahmedabad on Jun 12th 2025, lost height shortly after takeoff, no thrust reported

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.

On Jun 20th 2025 government officials stated, that India's AAIB is currently looking into another case of dual engine problems with an A321 that happened in London Gatwick in 2020, see: Incident: Titan A321 at London on Feb 26th 2020, left engine surged, engine stall indications for right engine, that was caused by fuel contamination. It appears on preliminary findings, that there was no error in the cockpit, it appears that as soon as the flight became airborne the power failure occurred leaving the aircraft unable to climb to a safe altitude.

[vera_k]

Found this Kanishka CVR transcript today.

AI 182 CVR

[Rakesh]

https://x.com/ShivAroor/status/1938146937972396347 ---> AI171 black box data successfully accessed, data downloaded at AAIB lab. Analysis underway. Official statement:

[pravula]

As I had theorized, they are starting with only one box at a time...

There are two boxes, AFAIK, they both collect the same data points (its designed in that way to increase the chances of finding atleast one). In this event, both were recovered, so I would expect only one will be unsealed initially and the second one will be used to validate the conclusions.

[rahulm]

Deleted.

[vera_k]

Previous instance of dual engine failure, but happened after the plane was on the ground. Couldn't find more about what caused it though.

ANA Boeing 787 Dreamliner Suffers Dual Engine Failure On Landing

[chetak]

This has taken on geopolitical dimensions

[vera_k]

I hadn't made this connection yet. Air India has received many bomb threats over the last year. And this flight had a former chief minister on board.

Sabotage angle being looked into

[A_Gupta]

Previous instance of dual engine failure, but happened after the plane was on the ground. Couldn't find more about what caused it though.

ANA Boeing 787 Dreamliner Suffers Dual Engine Failure On Landing

From the above, they are being really thorough!


“…we are looking at CCTV footage of Ahmedabad over the last 30 days. Those who came and those who went through screening, all the passports,”

[Cyrano]

Govt agencies are quiet. Along with the DFDR and CVR analysis, I think a lot of clean up is happening in AI, other domestic airlines and airports. NaMo never let's a crisis go waste.

[chetak]

[Cyrano]

AAIB has submitted it's preliminary report to the GoI today. Let's see if anything is communicated to the public.

[arvin]

https://www.financialexpress.com/india- ... h/3907442/

The preliminary report includes aircraft information, crew details, weather conditions, aerodrome data, a description of the accident, and the current status of the investigation, but it does not yet include findings, probable causes of the accident, or safety recommendations, a senior official told FE

So most likely only black box data will be out.

[Tanaji]

A recent report says that the enquiry is looking at if the fuel control switch was disabled

https://theaircurrent.com/aviation-safe ... -switches/

All speculation of course. Anything to blame the pilot ….

[Ambar]

No one has placed blame on the pilots, and the investigation is still incomplete. At this point, there are more questions than answers. Initially, the DGCA indicated that the CVR and FDR were too damaged for data extraction and requested the NTSB's assistance. However, the PMO intervened directly on the DGCA to pressing them to retain the investigation within India.Compared to the usual uneasiness that follows a Boeing crash, none of the international 787 operators grounded their fleets or even initiated checks for potential software issues. Meanwhile, the head of ICAO began pressuring Indian authorities to expedite the investigation despite no formal safety advisories being issued, which is also unusual after such a major crash.

Since arriving at the AAIB, the flight recorders have been placed under 24/7 surveillance. Adding to the mystery, we now have Z-level security with commandos guarding the DG of AAIB. There are also reports that investigative agencies have reviewed not just hours, but days of surveillance footage from in and around Ahmedabad airport.

This suggests something far more troubling than just pilot error or even a suicide. All signs seem to point toward deliberate and malicious sabotage. If the intention was to blame pilots or maintenance, then the PMO wouldn't have intervened and let the investigation take place at the NTSB HQ.

[Tanaji]

I was referring to the report linked above and not any official body. The fuel control switches can only be moved by the pilots and have measures to prevent inadvertent movement. Once set before takeoff they are not moved.

Again this is all speculation I suspect by the report.