There's also a related thread somwhere about a RAM B763 with the same problem. Planes are the same as any other machine. If you damage it, as in the case of the RAM a/c, you fit a new panel, new frames or whatever and it is as good as new. In that case it was a Boeing repair project, carried out by Delta who had the local facilities. What's the problem?
If you marked each aircraft down for a past incident they'd be none left to fly on. There are many, many incidents like this each year and the repairs are professionally carried out by skilled engineers. The evidence just doesn't support the fact that aircraft are falling out of the sky due to previous damage/repair problems.
Just my few pence worth. I'll carry on sleeping in business class thanks and not worry about it.