The crash of Asiana Airlines Flight 214 (OZ214/AAR214) was an aviation accident that occurred on July 6, 2013. The Asiana Airlines Boeing 777-200ER, operating as Flight 214, departed from Incheon International Airport, South Korea, and crashed while landing at its scheduled destination, San Francisco International Airport in the United States. There were 291 passengers and 16 crew members on board, resulting in 3 fatalities and 181 injuries.

On June 24, 2014, nearly a year after the accident, the National Transportation Safety Board (NTSB) released a detailed report. This PDF file is 207 pages long and contains extensive analysis of the accident, including specific introductions to the 777’s flight instruments. If you are interested, please visit the link above. Here are some excerpts of parts I found interesting.

The following image shows the cockpit conversation during the 60 seconds prior to the accident, along with time-series data listing speed, altitude, PAPI indications, and other information:

Changes in autopilot modes during the final 5 nautical miles of flight:

Changes in engines, pitch, airspeed, and altitude during the final 40 seconds:

Domestic experts have also published many professional comments, such as “What Exactly Happened in 77 Seconds? —- A Re-analysis of the Asiana Airlines OZ214 Flight Crash at San Francisco Airport” by Liu Qinggui, Chief Pilot of the Civil Aviation Academy of China, published in the China Civil Aviation Report, and a long post by Blaun on Weibo. Both provide extensive analysis of the crew’s operation and are worth studying.

Additionally, I am personally paying attention to this information: NTSB Calls For Special Review Of Boeing 777 Speed Control. Of course, Boeing denied any issues with the 777’s automatic flight control system. However, it seems that historically, this Special Certification Review (SCR) has only been conducted about 6 to 7 times, for a few aircraft types such as the R44 helicopter, ATR72, and Mitsubishi MU-2, so it should be a very special measure for the 777. It is said that there were significant disagreements within the investigation committee regarding the SCR, so let us wait and see how the situation develops.