South Korean transport ministry officials ordered Korean Air and Asiana to check engines and landing equipment on all 48 of their model 777 aircraft and announced that the government would conduct special inspections on the nation 's eight carriers through August 25 , 2013 . " The measures could include changing rules on training flights if needed , " Deputy Minister for Civil Aviation Choi Jeong-ho told reporters . The officials also said South Korea had no fatal air crashes between December 1999 and the July 2011 crash of an Asiana freighter
the July 2011 crash of an Asiana freighter
Asiana Airlines Flight 991
Asiana Airlines Flight 214