Turning Point is the third episode of the seventeenth season. The episode covers the accident of Air China flight 129, and aired on 6 March 2017.
On 15 April 2002, Air China flight 129 en route from Beijing, China to Busan, South Korea; crashes into a hill near the city, and kills 129 of the 166 people on board. The investigation later determines that the accident was caused by pilot error, witch lead to a controlled flight into terrain.
- This accident is the first Boeing 767 accident covered since season 14.
- The episode's title is the same as the sixth episode of the eleventh season.