Firewall was preassembled earlier and only need to be primered on outer side before installation. I deburr and primered the gusset 6-B-15-2 , and angles 6-B-15-52, -15-53 , -15-54 . After drying for a while, I sand and clean these parts and temporary install them with clecos. Some adjustments to the angles on rear side of firewall was necessary. All items on page 8-9 done.
