If this plane crashed into the ocean wouldn’t the water damage the cell phone. I know with mine I had several incidents where water got into my cell phone (don’t ask lol) and it would stop working. The phone buttons do not operate and it acts up like it is possessed.
It stopped working on your end but surely when you tried to call the destroyed cell you go a ring-tone and perhaps were even sent to your voicemail. This happened to me before. It seems these people think that just because the phone appears to be ringing on the caller's end it, it means the phone on the other end must be still working.
If this was so, then why do we have to call an outside number to listen to our voicemails?