When I was up in Alaska, just about everyone flew little bush planes, the one we were using was a 1953 Piper Colt with canvas body. It was in pretty good shape with up to date maintenance, but it would be like going on a trip in a car that old. You would hear about them crashing all the time and people usually came out with pretty minor injuries. It's like a motorcycle, you learn pretty quick how to crash in such a way that you don't die... The dangerous part is getting stuck in the wilderness with a broken leg or something.