I was involved in a very similar incident at EGLL back in 1998. B777 G-VIIH aborted take off with a uncontained engine failure. This happened at 71 kts !! pretty similar to the current incident. There was no fire in this one
Metal from the turbine was was strewn all over the runway and all in very small pices.
The No 1 engine was a GE90-85BG04, serial no. 900158,
There is a AAIB report here
https://assets.digital.cabinet-offic...pdf_500368.pdf