The previous worst Korean air disaster was mostly caused by crew communication failures. See https://en.wikipedia.org/wiki/Korean_Air_Flight_801
I'll add that I'm not saying that is a factor in this at all - the accident report will do that in time.
I'll add that I'm not saying that is a factor in this at all - the accident report will do that in time.
The NTSB identified poor crew communication and crew resource management as important factors. Reuters and AFP reported negative repetitional impact to Korean air carriers.