The black stripes you are seeing are on a different texture sheet: lit_fuse_f_T.dds.
Hint: There is a brilliant freeware tool you can use to explore the mapping of the texture sheets: ModelConverterX (made by Arno Gerretsen, available on fsdeveloper.com).
- Install the latest development version
- Open the exterior MDL file
- Hit the "Material Editor" button
- Check the "Highlight Selected" tick box
- Scroll through the materials list to find LIT_FUSE_F_T - the model area you are looking for will be highlighted in red.