The ornamental design for an aircraftcockpitceiling, as shown and described.
FIG. 1 is a rear, right perspective view showing an aircraft cockpit ceiling according to our design;
FIG. 2 is a rear elevation view thereof;
FIG. 3 is a bottom view thereof; and,
FIG. 4 is a rear, right perspective view of the aircraft cockpit ceiling of FIG. 1 shown with additional unclaimed features of an aircraft cockpit in dashed lines.
Throughout the Figures, non-shaded portions and broken lines showing environment or structure form no part of the claimed design. Portions of the article not shown in the drawings do not form part of the claimed design.