The ornamental design for a fueltankframeassembly, as shown and described.
FIG. 1 is a perspective view of a fuel tank frame assembly;
FIG. 2 is a front view of the fuel tank frame assembly of FIG. 1;
FIG. 3 is a back view of the fuel tank frame assembly of FIG. 1;
FIG. 4 is a first side view of the fuel tank frame assembly of FIG. 1;
FIG. 5 is a second side view of the fuel tank frame assembly of FIG. 1, wherein the second side is opposite the first side of FIG. 4;
FIG. 6 is a top view of the fuel tank frame assembly of FIG. 1; and
FIG. 7 is bottom side of the fuel tank frame assembly of FIG. 1; and,
FIG. 8 is an enlarged detail view of the latch assembly of the fuel tank frame assembly circumscribed within FIG. 3.
The broken lines in the drawings depict portions of the fuel tank frame assembly that form no part of the claimed design. The dot dash dot broken lines indicating the area of the detail in FIGS. 3 and 8 form no part of the claimed design.