An inspection system for ultrasonic inspection of a part, such as an aircraft component. The inspection system may include one or more transducers, an acoustic coupler made of an acoustic coupling compliant solid, a low friction contact film, a location sensor, and a processor. The contact film may substantially surround the acoustic coupler or portions thereof. The transducers may transmit ultrasonic or sound waves through the acoustic coupler, the contact film, and at least partially through the part being inspected thereby. The location sensor may sense and output information regarding how far the ultrasonic inspection system has traveled along the part. The processor may associate signals from the transducers with signals from the location sensor to determine precise locations on the part at which particular signals are received by the transducers.