FUEL TANK DAM
FIG7 is a side view of the fuel tank dam in the embodiment of the present invention 
As shown in FIG7, the flange section 14 extends along the skin 1 and is fixed to the inner surface 4 of the skin 1 with a sealant interposed therebetween, for example. The flange section 14 includes a first flange section 14A, a second flange section 14B, and a third flange section 14C, each of which is continuous. Each of the first flange section 14A, the second flange section 14B, and the third flange section 14C illustrated in this embodiment is formed in a flat plate shape having a uniform continuous thickness, and has a flat surface conforming to the inner surface 4 of the skin 1.
side view
14
flange section
12
second section
2
stringer
25
recessed groove recessed grooves
10
fuel tank dam
15
bellows
3
rib
13
third section
['1. A fuel tank dam that closes a gap between a first structural component fixed to an inner surface of an outer plate of a fuel tank and a second structural component having a cutout portion into which the first structural component is inserted, the fuel tank dam comprising: a first section capable of being fixed to the first structural component; a second section capable of being fixed to the second structural component; a third section which has a bellows having at least one folded portion and is disposed between the first section and the second section; and a flange section extending along the outer plate from at least an edge portion of the third section.']