The home pic on this link
https://aviationtribune.com/airlines...w4000-engines/
is of the PW4000 series. On the bottom of the engine, in the 6 o’clock position, running length-wise are two similar piping ducts with matching insulation.
Going by the other pictures up thread of the engine damage/severe burns on the bottom half of the engine, parked on stand, it appears they’re the same ducts.
If so, I’d say they’re engine anti-icing ducts.