Multiple ways to run the scenario. But most would say to simply disclose ANYTHING and EVERYTHING. Whether it was aviation related, or a traffic ticket when you were 16. This has been beat to death like crazy in Delta hiring threads.

But, should you choose to leave it on your app, it can play to your advantage. It will simply make for a great TMAAT story when something didn't go your way, and you learned from it, etc etc etc.

Especially if you've been failure/unsat free since, no blemishes in a 135/121 or military operation, whatever. It makes it a very "safe" topic so to speak.