This is an overrun excursion into obstacles. As such, a dependence on one possible theory of engine damage needs to be doubted. The aircraft was roughly following terrain in its final 200 meters, terrain that resembles a curve roughly, and may have allowed degenerative velocities around the nacelles.
It is possible the forward third of the aircraft lost its energy whilst uplifting the following structures, wings, and tail. This would allow a form of 'protection' for the casings, and Fans.
The spinners and wide chord blades appear not to have suffered from forward (blunt) impact, and the standard "the blades suggest making power at impact" may not apply here. The corollary "idling at impact" is also suspect.....
The data will show the power levels at 0 velocity. But, just because rhe fans are reasonably void of thrust telltales does not mean the engines were not powered up.
Commanded thrust, delivered thrust, and thrust at impact tell a story, but in the company of the recorders, conjecture from site photography might take a back seat to data.....
Last edited by Lyman; 4th Jan 2013 at 16:11.