After clecoing the F-01404 Bulkhead to the F-01484 Center Bottom Skin, it’s now time to start riveting them together. To start, the F-01416B Seat Rib Angles get riveted to the Seat Ribs with six LP4-3 blind rivets. The picture below shows the location of the rivets circled in black. This is the “outside” of the right Seat Rib.....
.....the “outside” of the left Seat Rib.....
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.....the “inside” of the right Seat Rib.....
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.....and the “inside” of the left Seat Rib.
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