Decided to jump around and complete some miscellaneous tasks in several sections prior to returing to work on the fuselage bottom skin. Completed step 1 page 28-06 – installed AN837-4D bulkhead fitting in F-1204D bulkhead with NAS1149F0763P washers and AN924-4D nut. Installed this in Section 21 prior to installation of bottom skin for easier access based on recommendations by others. Returned to steps on page 30-04. Checked installation of fastening hardware per Figure 1 the torqued the AN3 fasteners to 25 in pounds with torque wrench. Completed steps 1-3 page 11-04 – installed left and right AST assemblies with hinge pins fabricated per Figure 1. Attached left and right AST assemblies together with AN525-8R8 screw and AN960-8 washer and AN365-832A locknut per Figure 3.
