The passenger compartment windows make it possible to see out of the passenger compartment.

Each side of the fuselage has 6 passenger compartment windows. The windows are installed between stringer 9 and stringer 12, with their center line at WL119.50. One of the windows on the right side of the fuselage is in the over-wing emergency exit.

The passenger compartment windows are acrylic and rectangular in shape. They are 13.22 in (33.58 cm) by 20.22 in (51.36 cm), with the same contour as the fuselage.

The window is a bonded structure which includes an outer ply, an inner ply, and a seal.

A small hole at the bottom of the inner ply lets air from the inner part of the aircraft to the space between the plies. A rubber seal isolates the two plies to give a thermal air space between the plies. The plies are isolated by 0.125 in. (3.18 mm) of air.

The outer ply is an acrylic sheet 0.256 in. (6.50 mm) thick The external surface is convex and has a machined edge 1.05 in (26.67 mm) in from the outer edge of the window. The machined edge makes a flat surface with the fuselage skin.

The inner ply is also an acrylic sheet 0.200 in. (5.08 mm) thick. The external surface is convex, and the vent hole is 1.25 in (31.75 mm) above the bolt line, on the center line of the window.

The rubber seal is an E type seal around the edge of the window.

There is a bushing in 44 positions around the window. The bushing is a metal spacer with a rubber sleeve. These holes are for installation of the window and align with the holes in the outer fuselage.

There are retainers that hold the anchor nuts in position. The installation bolts engage the anchor nuts when the window is installed.