What kind of incident? Is it an incident or an accident? What have you learned from it? Are you owning it or blaming third parties? All this will have an influence on the matter......, I had an engine failure back in the day on a 172 that ended in a ditching in the Bahamas....., I have documentation from the NTSB and I declare it in every application (even with jobs abroad that specifically say "No accidents or incidents") never really been a problem even at jobs with the majors in the US or jobs abroad.
Depends really on what it is...., if you are a little more specific, maybe you will get an answer from somebody with actual experience on the matter.
Good luck