The West Wing1999

Donna Moss:
Angel [Air Force One] undergoes maintenance every day, whether the plane's gonna be flying or not. Every 154 days, the plane's completely taken apart and put back together again. 24 hours before wheels-up, fuel is sealed in a tank truck and guarded by sharpshooters. One hour before wheels-up, Air Force specialist drain off a gallon and analyze it for purity and the right levels of octane and water. The wiring - and this is gonna be an area - is shielded to protect it from a thermonuclear blast. If you want to sabotage it, you have to get by 48 armed members of the Air Lift Security Unit or join the maintenance crew, which takes 12 years after a two-year background check.