I didn't realize that you have some connection to Palmdale and/or Rockwell.
This may have absolutely nothing to do with the loss of the Columbia.
BUT, I have personally been in the midbody of the shuttle and seen with my own eyes the "professional" work done by the Palmdale people - the stepped-on boron struts, intercostals, wiring harnesses, and tubing. I have personally viewed the IPR log when the Columbia came back from Palmdale. I have personaly knowledge of the months of additional processing time required to repair all the damage they did out there.
Facts are facts. The Palmdale workers butcher the shuttle every single time they get their hands on it.