Giff Marr writes:
Do I have a miss manufactured (rear seat) bracket or is this normal?
If normal, what did you all do to address the problem?

Giff,
I encountered the same issue. To correct, I built a flox/micro pad on the
back of the rear seat bulkhead to provide full surface contact. I did this
as a "last step" after the fuselage side flanges were installed. As this is
an important part of the pressure vessel, I thought it needed a good
surface. I also carefully marked the location-not easy-and drilled two holes
through the seat bottom flange, the rear seat bulkhead and into the bracket,
and installed nut plates behind the (steel) bracket to take two of the 3/16"
bolts used to close out the seat-to-back joint. Be sure to core and fill the
seat back with micro around the holes to keep from crushing the seat back.
Hope this helps.
Was just in Ft Worth, but no time to stop by; hope your project is still
going well?
Bob Pastusek