V-22 ground station enhancements and vibration diagnostics field experience

The V-22 tiltrotor aircraft's primary tool for aircraft maintenance is the Comprehensive Automated Maintenance Environment - Optimized (CAMEO). CAMEO is a ground based system for aircraft download processing. Under the CAMEO umbrella are several tools with distinct functionality, linked together and sharing common data to support aircraft maintenance operations. This paper provides a general overview of the CAMEO system along with selected components that support mechanical systems (rotors, engines, interconnect shafting system and nacelle blower) monitoring with an emphasis on vibration diagnostics. Also covered are ongoing activities associated with improved performance and integration of maintenance tools associated with vibration monitoring. Vibration diagnostics are automated, directly linking with the associated V-22 Integrated Electronic Technical Manual (IETM) procedures. Fleet Support Team (FST) and industry original equipment manufacturer (OEM) engineers use additional tools like the V-22 Data Visualization Toolset (VDVT) to review and confirm existing diagnostic indications, or determine new ones as necessary. Recent enhancements and anticipated further improvements of the on-board Vibration, Structural Life and Engine Diagnostics (VSLED) unit are addressed. Some examples of fault detection of degraded mechanical components using vibration data are presented, with related lessons learned.