Compressive deformation of the aluminum cladding along the edge of the fracture common to the faying surface.Cyclic rubbing of the fracture surface and associated compressive deformation of the cladding was observed along the faying surface shown in picture providing additional evidence of pre-existing crack. The cladding displayed compressive deformation due to cyclic crack closure as far forward as hole +17 and as far aft as hole 62. The remaining fracture aft of hole 62 displayed “necking”, which is typical of continuous tensile loading to ultimate tensile separation.