I modified one F-716-L and one F-716-R Seat Rib by adding the F-716B Seat Rib Access Plate and cutting the rib. The top of the ribs needed to be removable to install the control system.
I also modified one F-716-R and F-716-L Seat Access Rib by enlarging the lightening hole in the forward portion. The extra space was needed to allow the controls to move.
Time: 1 hour.