1. Integrating Lead Innovative Technologies  Impact Technologies’ Physics-Based Prognostics with DSI International’s Systems Diagnostics  DSI developed a detailed model of the fuel control assembly for an airplane  Detailed Diagnostics tests for fault isolation were developed  Prognostics were added for the fuel transfer pump  Prognostics uses  P, fuel flow rate and Cmd inputs to assess pump degradation

2. Fuel Control Assembly Model

3. Head Flow Rate Best Eff. Point (BEP) NPSHR NPSHA Ideal Degradation Effects Pump Prognostics Explained

4. Prognostics “Added Value”  Isolation in just one “test”  Set of anticipated diagnostics tests to fail  Can provide an anticipated time to failure with confidence bounds based on future operating profile  May be used to change diagnostics tests order to isolate faults more efficiently i.e. with fewer tests  May provide updates to reliability curves (updated MTBF) for simulations