In the 1978 Toronto overrun accident, the runway is now 9697' and the a/c stopped at the bottom of the ravine with a good portion on the slope as did AF358. I had a good look at both hulls.
El Mundo's diagram shows 4.35 km from the end of the runway to the debris which is about 14,300' which leads me to suspect the a/c was in the air for a short distance.