The Boeing Company

Sean Patrick Warlick

Omid B Nakhjavani

Franz David Betz

James Schimert

Darren Puigh

Andrey Aleksandrovich Zaikin

Greg Jackson

Daniel Volk

Catherine M Crandall

Steven C Runo

Ryan K Coleman

A diagnostic system for a closed fluid system is provided. The closed fluid system includes a first fluid subsystem and a second fluid subsystem connected using a valve or valve/actuator. The diagnostic system includes a first sensor disposed in the first fluid subsystem, a second sensor disposed in the second fluid subsystem and a computer. The computer receives first time-ordered fluid level measurements and second time-ordered fluid level measurements from respectively the first sensor and the second sensor and performs a comparison of first fluid level of the first fluid subsystem and second fluid level of the second fluid subsystem. The computer produces a notification indicating a predicted transfer of hydraulic fluid when the first time-ordered fluid level measurements and the second time-ordered fluid level measurements have at least a threshold divergence and outputs the notification for display to a user.

Diagnostic system for a closed fluid system

A system and method for detecting faulty engine anti-ice sensor is disclosed and may include obtaining first pressure data representing a first pressure over a period of time at a first engine anti-ice pressure sensor on an aircraft engine. The method may further include obtaining second pressure data representing a second pressure over the period of time at a second engine anti-ice pressure sensor on the aircraft engine. The method may also include generating a variance value based at least partially on a variance of a difference between the first pressure data and the second pressure data. The method may include providing an indication that liquid is within the first engine anti-ice pressure sensor or the second engine anti-ice pressure sensor when the variance value exceeds a threshold.

System and method for detecting faulty engine anti-ice sensor

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Seattle, WA, United States of America

Sean Patrick Warlick