Patent ID: 7966804

Claim:
A cooling system for a gas turbine engine control system, said cooling system comprising: an inlet portion coupled in fluid communication with a source of cooling fluid, said inlet portion configured to channel a flow of cooling fluid from the cooling fluid source to the control system to facilitate cooling the control system; an outlet portion configured to channel cooling fluid from the control system to one of the cooling fluid source and a reservoir; a first pressure sensor operatively coupled to the gas turbine engine control system and configured to indicate whether the cooling fluid is pressurized; a differential pressure sensor in flow communication with said inlet portion and said outlet portion, said differential pressure sensor configured to sense whether a pressure difference exists between said inlet and outlet portions of the control system; and a processor configured to verify the flow of cooling fluid through said cooling system using said first pressure sensor and said differential pressure sensor, and determine a fault of said differential pressure sensor when said differential pressure sensor indicates a pressure difference and said first pressure sensor indicates the cooling fluid is not pressurized.