From the Korea Times...my bolding.
Yoon’s remarks came amid the U.S. National Transportation Safety Board (NTSB) was investigating the actions taken on the aircraft, including those of the pilots. Media both at home and abroad pointed fingers at the pilots, assuming that something went been wrong in the cockpit.
However, Jung Yoon-shik, a professor at Jungwon University based in Goesan, North Chungcheong Province, said that mechanical problems in the engines might have caused the crash.
“It is possible that the engines were not working properly when the plane was landing on the runway. With the malfunctioning, pilots might have failed to control the engines,” said Jung who previously worked as a pilot for Asiana.
Deborah Hersman, the chairwoman of the NTSB, told a press conference that the plane was traveling at about 106 knots at impact, “significantly slower than the target approach speed of 137 knots,” hinting that engine problems could be the reason of the crash.
Yoon said he will head for the Californian city on Tuesday afternoon, along with six family members of passengers who were onboard of Flight 214. Asiana said that Yoon will visit casualties who are being treated at seven hospitals in the city, including San Francisco General Hospital.
I was not aware that the NTSB had hinted anything of the sort.
Saving National Face manifests itself in the Korean public media.