bug in 6.9.1

hello,
the following code causes a crash in the oc6.9.1:
    TopoDS_Shape o_face;
    BRep_Builder o_builder;
    BRepTools::Read (o_face, "c:\\cylface.brep", o_builder); //attached file
    gp_Trsf o_trafo;
    o_trafo.SetTranslation (gp_Vec(500,0,0));
    BRepBuilderAPI_Transform o_trafo_algo (o_face, o_trafo);
    o_face = o_trafo_algo.Shape();
    ShapeFix_Shape o_fix (o_face);
    o_fix.Perform (); //crash
how can it be fixed?
best regards,
Author