Loss of power is the most straightforward reason. I believe failure/shutdown of both engines would be required on this aircraft to cause that in flight, but not

Loss of power is the most straightforward reason. I believe failure/shutdown of both engines would be required on this aircraft to cause that in flight, but not certain. Doesn't need to be simultaneous either. No need for an exploding plane. FOD is a likely culprit in one or both engines. Also, cascading failures are possible, though actively engineered against. This paper [1] explores cascading failure specific to engines, might be interesting to some (PDF). [1] https://www.sciencedirect.com/science/article/pii/S1877705814012016/pdf?md5=d3221e7ef484a5dc58807f891d69345f&pid=1-s2.0-S1877705814012016-main.pdf https://www.sciencedirect.com/science/article/pii/S187770581...