Like someone before said, just be up front and honest. If you think something in your past might be a big deal, them let then know. They will give you an opportunity to explain the matter further. If you have a check ride failure you better let them know...they will get your records from the FAA and will find out about it. I had forgot about two speeding tickets I received...one was 8 years ago and the other 15 years ago. I called and e-mailed the recruiter to let her know of my error. Maybe I went too far but I wanted to be honest about it.
Good luck and I hope you get an interview. I was there at Eagle recently and got an offer.