Over the weekend, I popped in the first episode of Season 3. I noticed when the plane was ripping apart that there was a nails-scraping-metal sound that I never noticed before as the plane was coming apart.

It immediately struck a chord (yay!) in my tiny brain that caused me to remember the seemingly similiar sound of the Helicopter (if that's what it was) going down.

Did anybody else notice that?

To me it sounded ( the helicopter) like glass scraping on glass.