I finished riveting the gusset plates PF-138-63-T and PF-138-63-B. The forward cabin frame has a slight side-to-side taper inward, about 3/8" overall. In otherwords the firewall area has about 3/8 less width than the PF-192 location. So, getting all the clecos and drills holes can be somewhat challenging since the structure is under some minor tension. I also managed to do some much needed cleaning on the workbench.
