The application of advanced anomaly detection to tail rotor HUMS data : based on a report prepared for the CAA by GE Aviation Systems Limited

The objective of the study reported here was to demonstrate the application of the advanced anomaly detection (AAD) methods successfully developed and applied to HUMS transmission data by GE (see CAA Paper 2011/01) to the rotor system data already routinely collected on in-service helicopters.

In view of the findings published in CAA Paper 2008/05, the scope of this work was restricted to tail rotor systems.