Clamped the rear spar reinforcing angles into the rear spar as shown in the parts drawing on page 02-01 of the Parts Manual. Verified that the parts fit together with no gaps and that the angle of the spar edge was 85 degrees. Transfer drilled #40 and clecoed the reinforcing angles into the rear spar.
Clecoed the rear spar plate reinforcement to the rear spar. Transfer drilled these to #30.
Clecoed the rear spar plate to the rear spar. Transfer drilled these to #30.
Bolted the Vertical Stabilizer hinges to the rear spar as shown in Drawing # MD4785 on page 02-01 of the Parts Manual.
Clecoed the rib #1 reinforcement as shown in the Parts Drawing. Transfer drilled this to #30.
Installed the rib stiffener onto Rib #6 as described in step #17 in the Text Manual (see page 02-2).
