If you did not do the Preliminary Parts Preparation for parts
on both elevators when you did the right side, go back to the
Right Elevator section and follow the instructions for those and
add the following:
E-605 left root rib: verify that the trailing edge flange bend
line is perpendicular to the centerline of the rib; bend this
flange farther so it makes an angle of 68 degrees with the rib
body.