FIG. 1 is a perspective view of an aircraft wingtip lighting, showing our new design;
  
    FIG. 2 is a front view thereof;
  
    FIG. 3 is a rear view thereof;
  
    FIG. 4 is a left-side view thereof;
  
    FIG. 5 is a right-side view thereof;
  
    FIG. 6 is a top view thereof;
  
    FIG. 7 is a bottom view thereof;
  
    FIG. 8 is an enlarged view of portion 8 indicated in FIG. 1; and,
  
    FIG. 9 is an enlarged view of portion 9 indicated in FIG. 4.
  The broken lines depict portions of the aircraft wingtip lighting that form no part of the claimed design. The wing illustrated in broken lines is for environmental purposes only and forms no part of the claimed design. The dot-dash broken lines depict reference to the enlargement and form no part of the claimed design.