On-Wing Inspection Techniques Using Laser Technology

This paper describes research and development (R&D) being conducted to reduce operating and support (O&S) costs in the Army by developing a device that can inspect fatigue critical components for microscopic damage while on-wing. Laser beam analysis technology will be incorporated to develop a hand-held device to inspect aircraft components. The device will be low-powered and will analyze the components in real-time. Components can be inspected by applying a laser beam to the surface and analyzing the refracting light patterns off the surface. Lasers pattern analysis can detect surface anomalies that lead to microcracking and ultimately component failure. An advantage of this technology is Lasers can be applied to small areas such as borescope ports to examine internal turbine engine components such as compressor rotorblades. By inspecting turbine engines on the aircraft versus removing the engine and shipping to an Army depot, the Army saves significant costs and increases aircraft readiness.