The objective of this Phase I project is to demonstrate an automated on-line structural health monitoring system for aircraft structures using a combination of wireless data acquisition and fault detection filter via a sensing network for vehicle-embedded large arrays of MEMS sensors and actuators. A fault detection filter, whose functions are to identify and localize the damage, is considered as a new concept in the field of structural health monitoring. Sensor validation is implemented in the distributed sensor network to ensure only validated data are sent to the central station for further system utilization. Wireless communication provides a safe, affordable, and more efficient method for the online health monitoring of vehicle subsystems and information monitoring. It also involves signal processing to support decision-making related to safety, maintenance, or operating procedures.