Just asking - as I don't have first hand knowledge, but what is the maintenance like at Kalitta? I havn't heard of them having many incidents or accidents. I would assume it's on the better side of the fence.
Another thing is that we need to wait and see what caused this. The El-Al plane lost the engine as the fuse pins had massive corrosion. They were weakened to the point that they couldn't stay on. After this Boeing redesigned the pins, pylons, and maintenance program and that seemed to fix the problem. This could be anything from a bad repair, bad maintenance, design fault, turbulance, etc.... We simply need more info at this point.