I know!
Ok, I have no idea what sound they'd make.
He says he thinks it's engine failure, and gives some reasons. One of the reasons is that the RAT deploys. But he also says there are other things that could cause RAT deployment, so he needed more reasons as evidence that it was engine...
I think you've misread what I posted. I know he posted videos of jets with RATs, and said that he thought that was deployed on the Air India flight. He says he thinks it's double engine failure. But presumably the engines losing power would mean engine failure even if they're still running to...
I don't know any better, but when the captain giving that video gives reasons why he thinks it was engine failure (he can see the RAT, he can hear the RAT, the pilot said he lost thrust, the witness said there was a bang and light flicker), he didn't say 'I couldn't hear the engines'.
If it was double engine failure, I'd hope they'd ground all of the same aircrafts, unless they were absolutely sure it couldn't happen to another plane.
If it really was a faulty aircraft that the crew warned about, I would expect air-crash investigators to find out, and that should be the end of Air India. I'm not saying it will be, but it should be.