A metallurgical examination of an axle failure was requested to determine if the wheel loss caused an SUV rollover or if the SUV rollover caused the wheel loss. An overall view of the failed axle is shown in Photograph A.
Photograph A View of failed axle.
Visual and microscopic examination revealed that the axle failure was actually a steering component failure caused by impact forces resulting from the SUV rollover. No metallurgical or manufacturing defect was found that could account for a pre-accident failure of the SUV axle.