SAE Standards Works
A-6B3 Electro-Mechanical Actuation Committee
AIR6226 - THSA structural load path integrity monitoring principles
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Dominique Van Den Bossche
THSA structural load path integrity monitoring principles
Most of the Trimmable Horizontal Stabilizer Actuators (THSA) feature a dual structural load path, the primary load path being loaded, the secondary load path being normally unloaded, or both load paths sharing in parallel the Horizontal Stabilizer load. This document intends to describe existing methods for detecting rupture or disconnection of loaded load paths
In the recent past years many different solutions have been designed and successfully implemented to cope with possible failures of Trimmable Horizontal Stabilizer Actuator primary load paths.