Background
The P-3C Orion continues to be a valuable asset to the Navy. Today's P-3C Update III is the baseline configuration. It has advanced submarine detection sensors, Magnetic Anomaly Detection equipment and may carry a mixed payload of weapons internally and on wing pylons. The most recent updates deliver modern technology and improved acoustic sensors. Continuing structural engineering and analysis of fatigue data is conducted under the Fatigue Life Management Program (FLMP). Ongoing analysis has led to the grounding of P-3C aircraft due to concerns of fatigue damage in portions of the lower outer wing. This has led the Navy to develop and execute a comprehensive recovery plan that included accelerated FLMP efforts, use of on-hand material to immediately begin required modifications, and a dual-path approach to recovery that included both installation of complete outer wings and targeted material replacement. Ongoing monitoring allows the P-3C to continue its operation with the reserve squadrons until they make the transition to the P-8A.