We successfully blasted through 3 ribs. While I was holding the bucking bar on the inside of the wing, I accidentally dropped the bar. It fell through a lightening hole in the spar and landed directly on the leading edge of the wing.
The bar left a crack in the wing that’s about .25 inches long. To make matters worse, I couldn’t reach the bucking bar to pull it out of the wing. It’s stuck in there!