Variants of a mold are catalogued separately, so each one has its own sets and minifigs. Check these too if something you expect is missing here.

• 18907 Aircraft Fuselage Curved Forward 6 x 10 Top with 5 Window Panes this part is a print of it
• 18908 Glass for Aircraft Fuselage Curved Forward 6 x 10 Top with 5 Window Panes this part is a pair of it