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Preliminary report into Air India crash released

(www.bbc.co.uk)
341 points cjr | 2 comments | 11 Jul 25 20:23 UTC | HN request time: 0.411s | source
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decimalenough ◴[11 Jul 25 21:24 UTC] No.44536914[source]▶
> The aircraft achieved the maximum recorded airspeed of 180 Knots IAS at about 08:08:42 UTC and immediately thereafter, the Engine 1 and Engine 2 fuel cutoff switches transitioned from RUN to CUTOFF position one after another with a time gap of 01 sec. The Engine N1 and N2 began to decrease from their take-off values as the fuel supply to the engines was cut off.

So the fuel supply was cut off intentionally. The switches in question are also built so they cannot be triggered accidentally, they need to be unlocked first by pulling them out.

> In the cockpit voice recording, one of the pilots is heard asking the other why did he cutoff. The other pilot responded that he did not do so.

And both pilots deny doing it.

It's difficult to conclude anything other than murder-suicide.

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ExoticPearTree ◴[12 Jul 25 05:09 UTC] No.44539475[source]▶
> And both pilots deny doing it. > It's difficult to conclude anything other than murder-suicide.

You’re trying to prove a negative here.

I am not familiar with the 787 operations, but there are a few issues that need to be sorted out first: - altitude when pilots start the after takeoff checklist

- if there are any other switches that are operated in tandem in the general vicinity of where the engine cutoff switches are

- if the cutoff switches had the locking mechanisms present, and if not, if they could be moved inadvertently by the pilot flying hand

Discarding other possibilities in an investigation can have adverse consequences.

Did you ever always push the right buttons every time?

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1. tiahura ◴[12 Jul 25 12:02 UTC] No.44541473[source]▶
Have you ever turned your car off when you meant to turn on the windshield wiper?
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2. ExoticPearTree ◴[12 Jul 25 14:14 UTC] No.44542230[source]▶
I turned off my car several times because I forgot I turned it on in the first place. In all fairness, it was always when I was parked.