Just stop and think about what we don't see. If they are blatant enough to take off with snow and ice hanging off the aircraft it makes you wonder what else they might be inclined to do. Which inoperative parts they may be willing to fly without, what sort of fuel reserves they carry, and what kind of weather they may fly in.

I was in TPE one foggy a number of years ago and saw some sort of orange glow off to the Northwest. Found out later it was a China Air A-300 that had missed the approach and stalled and crashed on the go-around. A year or so later they had a Bulgarian Captain die at the controls so the F/O made the landing. The F/O was 27 and had 750 hours of total time. He was talked down by someone in Ops. They had him couple it up and make an auto land.

After these episodes Fedex stopped using Air China for deadheading crew members. They used to have a do not deadhead list but I'm sure that has disappeared.