Patent ID: 8355879

Claim:
A method of indicating a propagating fault in a component, comprising: measuring data corresponding to a condition indicator of the component and to an input factor, wherein the condition indicator of the component includes a vibration measure and the input factor is torque; determining, using at least one processor, a relationship between the condition indicator and the input factor; determining, using at least one processor, an effect of the input factor on the condition indicator; determining, using at least one processor, a filtered condition indicator based on the effect of the input factor on the condition indicator; and determining, using at least one processor, whether a propagating fault is indicated based on a correlation over a time period of the filtered condition indicator with the input factor, wherein the propagating fault is indicated according to the correlation over the time period of the filtered condition indicator with the torque input factor where the effect of the torque input factor on the condition indicator is determined as statistically significant in connection with trending of the filtered condition indicator over the time period.