Chky,
Re the El Al accident, if you can't get anything from the NTSB site or in English from the Dutch air investigations unit, have you tried approaching Boeing directly?
They seem like a pretty approachable lot and personally my first port-of-call would be a letter, providing evidence of student bona fides (eg. writing to them (rather than email) with support from your institution), they may be able to point you in the right direction.
Naturally they could be a bit reserved at first in the current security environment.
Also, maybe it's worthwhile trying to get in touch with some of the senior investigators at the ATSB and seeing if they have any stuff or can provide any pointers.
Just keep in mind that part of the point of doing these sorts of assignments is not just to learn the actual technical aspects, but also your research techniques; a bit of lateral thinking and some interesting stuff in the bibliography can often get an extra mark or two.
Good luck
TD67