Preliminary report into Air India crash released

> 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.

> 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?

The switches have lockout mechanisms that prevent accidental triggering. I'm not a pilot, but these guys are, and they find it exceedingly unlikely that anyone would switch both off by accident:

https://www.youtube.com/live/SE0BetkXsLg?feature=shared