System and method for aircraft fault detection

A method for aircraft fault detection, the method comprising:

• capturing, with at least one aircraft data logging device, parametric flight data from at least one aircraft subsystem;
• grouping, with an aircraft controller coupled to the data logging device, the parametric flight data from the at least one aircraft subsystem into a plurality of test states, one or more of the test states being different from other test states in the plurality of test states;
• generating, with the aircraft controller, at least one test transition matrix based on the plurality of test states and determine anomalous behavior of the at least one aircraft subsystem based on the at least one test transition matrix;
• and
• forecasting, with the aircraft controller, faults within the at least one aircraft subsystem based on the anomalous behavior of the at least one aircraft subsystem determined from the at least one test transition matrix.

A method for aircraft fault detection, the method comprising:

• capturing, with at least one aircraft data logging device, parametric flight data from at least one aircraft subsystem;
• and
• forecasting, with an aircraft controller, faults within the at least one aircraft subsystem based on anomalous behavior of the at least one aircraft subsystem determined from at least one test transition matrix;
• wherein the at least one test transition matrix is generated with the aircraft controller by
• grouping the parametric flight data from the at least one aircraft subsystem into a plurality of test states, where one or more of the test states is different from other test states in the plurality of states,
• for more than one time point in the parametric flight data, identifying a current state of a subject matter expert identified test variable of the parametric flight data and counting a frequency the subject matter expert identified test variable transitions from the current state to another state or to a same state at a next sequential time point, and
• normalizing the frequency so that one or more entry in a respective cell of a respective test transition matrix is a probability number that lies between zero and one.