Amazing that there are so many safeguards in place to prevent what happened to HCY 522, and yet the crew managed to miss/ignore them all. I'm sure there have be

Amazing that there are so many safeguards in place to prevent what happened to HCY 522, and yet the crew managed to miss/ignore them all. I'm sure there have been many thousands of instances where a safeguard prevented such an incident, but in this case I suppose the fates aligned.