Reuters/Stringer
- Singapore Airlines' deadly flight turbulence was so bad the plane dropped 178 feet in four seconds.
- Investigators say the G-forces in the plane caused passengers to fly out of their seats.
- The turbulence over Myanmar led to one death and over a hundred injuries, some severe.
The turbulence on the deadly Singapore Airlines flight last week was so severe that the plane dropped 178 feet in just four seconds, investigators say.