A gas turbine engine probe comprises a housing mounted in a borescope port of the engine. The housing includes at least one coolant passage that conducts coolant through the housing. The probe develops an indication of an engine condition, such as blockage in the engine due to sand and/or other debris.

A gas turbine engine probe comprises a housing mounted in a borescope port of the engine. The housing includes at least one coolant passage that conducts coolant through the housing. The probe develops an indication of an engine condition, such as blockage in the engine due to sand and/or other debris.

A method is provided for operating a system having a plurality of components which interact with one another. The method stores information relating to the interaction of a respective component with the other components in a respective component.