According to Merriam-Webster, something occurring to someone means an idea about that thing comes to that person's mind. So, it seems one may not say "A fault occurred to that system". So, what is the idiomatic way of saying "that system" experienced a fault?

  • 1
    "A fault occurred in that system."
    – gotube
    Commented Oct 9, 2022 at 4:11
  • @gotube: Thanks. If you write an answer, I will gladly accept it.
    – user69872
    Commented Oct 9, 2022 at 4:13

1 Answer 1


"A fault occurred in that system" is correct.

The preposition "in" collocates with "fault", so even without any verb, "in" is correct:

The Fault in our Stars

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