The ornamental design for a switch for an aircraftinterior, as shown and described.
FIG. 1 is a front perspective view of a switch for an aircraft interior;
FIG. 2 is a front view of the switch for an aircraft interior of FIG. 1, the back view is not illustrated and forms no part of the claimed design;
FIG. 3 is a bottom view of the switch for an aircraft interior of FIG. 1, the top view is identical to the bottom view and is not illustrated; and,
FIG. 4 is a first side view of the switch for an aircraft interior of FIG. 1, the second side view is identical to the first side view and is not illustrated.
The broken lines illustrate portions that form no part of the claimed design.