Computational Corrosion Modeling for Condition Based Maintenance Plus (CBM+) / Aircraft Environment Tracking

The Corrosion Rate Enabled Wash Cycle Updating Technique (CREWCUT) is designed to provide a conditioned-based approach to optimize aircraft and support equipment washing cycle practices, which are currently time-based. It is proposed as an enterprise information system that will automatically extract asset usage (e.g., aircraft flight and deployment history), correlate it to data representing the environmental exposure conditions experienced during operations and ground-based storage, and use algorithms based upon an existing state-of-the-art corrosion modeling system to project washing cycle lengths and associated washing dates. Furthermore, the system will be designed to track cumulative environmental exposure of individual assets such as aircraft, which will enable the fleet to be ranked by the severity of exposure. CREWCUT algorithms were developed and demonstrated under the Phase I SBIR effort. Massive amounts of asset usage, environmental, and system stakeholder data was collected to facilitate the timely transition to a Phase II effort. The system will be designed to function with very little human intervention and will send automated wash cycle notices to individuals responsible for washing individual aircraft/support equipment. In addition, the system will be capable of sending fleet status reports to the MAJCOM corrosion manager.