Went flying yesterday and noticed after takeoff with the Extra that things were a little louder than normal so I land the plane and checked the spinner, because it sounded like the spinner had come loose. Well, the spinner was tight so I took it off and checked prop bolts, 4 BROKEN bolts!! I have NEVER had a prop bolt break until yesterday. The bolts were about 5 tightening sequences since new, which was about 45 days ago. It damaged the new Falcon prop where the spinner dug into it pretty good, so I will be getting another prop, but just trying to figure out why the prop bolts broke
I did nothing different from what I have been doing for years, so this is a stumper to me.