BlackDiamond, I feel your pain. I'm an engine mechanic on F-16's and I've seen a few major investigations. I have been part of one, but my Squadron Commander and Group Commander decided I was in no way at fault. Hopefully all turns out well for you, these situations can be very stressful, so keep your head up.
On another note, I jacked up at work yesterday as well. I accidentally broke the back window out of my shops only work truck. I feel like an idiot, and to add insult to injury, the vehicle NCO said someone has to do an investigation to see if what I said happened is possible, if so, I'm off scott free, if not, I have to pay for the window in the F-350, which he said is probably $1200-$1300.