Air France 447
I know AF4447 has already been discussed almost endlessly elsewhere on here, but having just read Bill Palmer's book, the one thing which I had never really thought of before is this.- in less than the time it takes to read a chapter of the book, AF447 went from close on 7 miles high to crashing into the ocean. 4 minutes and 23 seconds from AP disconnect to oblivion.
Sobering to say the least and a poignant reminder that human weaknesses and human errors are so often pivotal in any disaster.