04-16-2012: 2 hrs
Started working on the center section. This is a very expensive assembly, and all critical holes were drilled in factory with the wing spar, so better be very careful with it. Spent quite some time to understand the drawing, and only enlarged the holes for bushings. It looks like there will be 4 new holes need to be drilled close to the center lines, but I will check other builders' site before proceed.
Firewall is all riveted except for the firewall recess
Center section bulkhead in its original packing
Holes are enlarged for snap bushing
Holes are enlarged for snap bushing
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