Q: I don't have all the information needed for my logbook. Should I just go ahead and lie about it?
A: When in doubt, and uncertain about accuracy or details, your first inclination is to lie? I'm not sure where it is but some company might like the way you think.
As an interviewer said - the people who get turned down often make it a pretty easy decision. Lying or falsifcation, especially of your logbook, is one of them.