1. Will my plane crash?
No, because crashes have to have something go wrong. And for everything that you need on a plane, you need to supply the plane with two, three, or four of them. The wings can’t break, so you only need two of ‘em. But, for hydraulics, you need a backup to the main system and a backup for the backup. For navigation, you have the same thing—the primary system, you have your backup system, another system behind that. So, you don’t just run out of what you need. So, that’s why we don’t have planes crashing in the U.S. We’ve gone 14 years without a fatality on a major U.S. airline.
2. What happens if a bullet is shot through the fuselage?
First, what would it not do: It would not cause the plane to come apart. The fuselage penetration area would not spread enough to threaten the plane. For the plane to be threatened, the bullet would have to damage a hydraulic system or an electrical system. Yet, even in that case, the plane should be alright, due to those backup systems and the backups' backups.