10 Bizarre (Yet Historically Proven) Things That Can Cause a Plane Crash

If the idea of flying, let alone actually flying, is enough to make your knees shake, don’t worry — you’re not alone. According to the National Institute of Mental Health, 6.5 percent of Americans suffers from aviophobia. That percentage translates to roughly 20 million people who experience an intense fear of flying for one reason or another.

With the skies statistically safer than ever, one has to wonder what these 20 million Americans are really afraid of. Perhaps their fears stem from one of these 10 unconventional things that history has shown to be capable of crashing a plane…

[Photo: iStock]