[oceanplexian]

If you somehow found a way to get a wooden arrow with a stone arrowhead on it into the engine of a Stealth Bomber at the wrong time and place, you may very well cause a big fireworks show. Less has taken down the engines of commercial airliners when a screw comes loose or something.

Advanced technology != invincibility. Actually, a lot of times the more advanced tech is, the more vulnerable it is to catastrophic failure.