evidence: A cellphone video taken by a passenger on the Yeti Airlines plane that crashed in Nepal appears to show the harrowing final moments of the flight. [...] The Yeti Airlines ATR 72-500 turboprop aircraft was flying from India to Nepal when it went down suddenly on approach to a newly opened airport in the city of Pokhara. It is believed that all 72 people aboard the flight were killed. Yeti Airlines confirmed that the flight data and cockpit voice recorders — the so-called black boxes — were found on Monday, a day after the plane went down, which could help determine a cause for the crash.