Korean Air is the commonly cited case, <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Korean_Air_Cargo_Flight_8509" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Korean_Air_Cargo_Flight_8509</a> is the crash the recommendations came out of.