Pratt-whitney Canada Corp

David Mathews

Antwan Shenouda

Poi Loon Tang

Yusuf Razi Syed

Michael Krynski

Herein provided are methods and systems for detecting an uncommanded or uncontrollable high thrust (UHT) event in an aircraft, comprising arming a UHT function, comparing an engine fan speed to a reference target and detecting a first condition when a first threshold is exceeded, comparing a rate of change of a high pressure rotor speed to a reference deceleration schedule and detecting a second condition when a second threshold is exceeded, detecting a UHT event based on excess thrust when the first condition and the second condition are detected, and accommodating the UHT event.

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Toronto, Canada

David Mathews