Turbine D:
The electronic engine controller (FADEC) and data recorders are an integral part of the engine and are mounted usually on the outside the forward part of the engine...
So true, not only for Rolls but others as well.
But it's the thermocouple lead from the LPT to the electronics, undercowl but outside the core casings, that I was referring to.
I suspect that the cockpit indications were also lost when the cables in the wing LE were severed.