The ornamental design for an aircraftpassengerseat, as shown and described.
FIG. 1 is a front perspective view of an aircraft passenger seat showing our new design;
FIG. 2 is a front perspective view thereof;
FIG. 3 is a back perspective view thereof;
FIG. 4 is a front view thereof;
FIG. 5 is a back view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof;
FIG. 8 is a first side view thereof; and,
FIG. 9 is a second side view thereof.
The even length broken lines illustrate structure and environment that form no part of the claimed design. The single long dash and single short dot broken lines represent a break line illustrating bounds of the claimed design and forming part thereof.