Uncertainty diagnosis for temperature detection systems

A system for detecting uncertainty in temperature detection systems, comprising:

• a temperature sensor including a ground sheath and a central conductor surrounded by the ground sheath, the ground sheath and the central conductor being electrically coupled to one another through a temperature dependent resistive element;
• a controller connected to the temperature sensor, the controller detecting an electrical parameter of the temperature dependent resistive element, the controller operable upon execution to output an indication when the electrical parameter of the temperature dependent resistive element is not within an expected value range based on an aircraft status indication associated with an aircraft, a historical value of the electrical parameter, and the electrical parameter,
• wherein the electrical parameter is a parameter that that characterizes temperature associated with the temperature sensor, and
• wherein the aircraft status indication is an indication of a flight phase of the aircraft, wherein
• the expected value range has a lowest average magnitude when the flight phase is an aircraft descent phase,
• the expected value range has a lower average magnitude greater than the lowest average magnitude when the flight phase is an aircraft cruise phase,
• the expected value range has a greater average magnitude greater than the lower average magnitude when the flight phase is an aircraft takeoff roll phase,
• the expected value range has a greatest average magnitude greater than the when the flight phase is an aircraft initial climb phase.