This is why a Korean Air flight crashed at some point. The copilot knew something was wrong but the pilot was a lot more senior than him and in Korean culture i

This is why a Korean Air flight crashed at some point. The copilot knew something was wrong but the pilot was a lot more senior than him and in Korean culture it's normal to defer to your elders (according to the checklist manifesto). The cockpit recording showed what happened and it directly contributed to efforts to standardize crew resource management training. Other incidents like a flight out of Morocco where an older male pilot disregarded the concerns of his female copilot and crashed the plane have reinforced the need for CRM, especially for pilots from cultures where people may be ignored for social reasons.