https://www.wcax.com/video/2023/10/05/raw-fedex-plane-shown-making-emergency-landing/ This video is great: https://www.reddit.com/r/aviation/comments/170ioaa/video_of_a_fedex_757_making_a_belly_landing_at/
Another view, great video: https://www.reddit.com/r/aviation/comments/170x0tl/another_view_of_the_fedex_757_belly_landing_from/
Its getting hot enough the aluminum debris is burning. Especially in the dark it can be seen when its hot enough to burn. Also some are alloyed with varying amounts of magnesium depending on its application. Aluminum/magnesium engine blocks look like the sun when they burn. If that had happened in daylight it would not have been nearly as spectacular.
Part of the problem is they did not foam the runway. Not sure why they did not. I have seen 2 of these as I work at a busy airport and both had foam on the runway.
We do not foam runways any longer in the military since we switched from JP4 to JP8 and the fire risk went down. Jet-A is very similar to JP8. Last time I remember extensive use of foam with a civil airliner, a passenger was run over by a responding vehicle that did not see her.
That was the SFO Asiana accident, and it was used after the aircraft had crash landed. They still use it at commercial airports.
Great landing. They must've had a failure of all three hydraulic systems or a huge electrical failure greater than 30 minutes away.
Gulfstreams have an N2 emergency gear blow down system. I guess for situations like this. Glad the crew was okay.