An accident may be caused by the failure of a critical component within a vehicle, resulting in loss of control. Analysis of the involved vehicle components may be necessary to assess liability when a vehicle defect or component failure is alleged to have caused an accident. The investigation may include a metallurgical analysis of a specific component, a review of the recall history of the vehicle, and an analysis of witness statements. Vehicle defect investigations often involve a failed suspension component, which leads to a loss of control, or a faulty electrical or fuel system component which leads to a vehicle fire. A thorough vehicle defect investigation may lead to a finding of liability against a vehicle equipment manufacturer or repair shop.