The number of aging aircraft has increased in the recent years. In this situation new technologies of intensive integrated airframe damage monitoring without the involvement of additional man-hours are highly appreciated. This work represents an experimental research on some rudimentary elements of a potential structural health monitoring system which is based on piezoelectric sensors and exploits guided Lamb waves and electromechanical impedance as physical phenomenon for damage detection in aluminum aircraft thin walled structures. Two experimental research topics are briefly covered:...