An ultrasonic, nondestructive evaluation system to provide 360-degree inspection coverage for an interior surface of a pipe to detect presence of a defect, comprising: a first transducer and a second transducer which are Lamb-type wave transducers and positioned within an interior space of the pipe, the first and second transducers (10, 12) are spaced a distance apart and facing one another, the first transducer is positioned at a first location to emit a first ultrasonic beam in a clockwise direction from the first location toward a portion of the pipe which is to be examined and toward the second transducer, and the second transducer is positioned at a second location to emit a second ultrasonic beam in a counter-clockwise direction from the second location toward the portion of the pipe which is to be examined and toward the first transducer, and a means for operating each of the first and second transducers (10,12) in pulse echo-mode, wherein each of the first and second transducers (10, 12) has a dead zone associated therewith and the distance between the first and second transducers (10 12) is at least twice the distance of the dead zone, the first transducer provides inspection coverage for 180-degrees or more beyond the dead zone associated therewith and the second transducer provides inspection coverage for 180-degrees or more beyond the dead zone associated therewith, such that the 360-degree inspection coverage is provided by a combination of the first and second transducers (10, 12), wherein the dead zone is a region closely surrounding each of the first and second transducers (10, 12) where valid data essentially cannot be obtained, and a verification component structured to confirm a distance of propagation of the first and second ultrasonic beams for the first and second transducers, and a processing component structured to isolate a specific mode from a plurality of propagation modes generated simultaneously by each of the first and second ultrasonic beams. a first transducer and a second transducer which are Lamb-type wave transducers and positioned within an interior space of the pipe, the first and second transducers (10, 12) are spaced a distance apart and facing one another, the first transducer is positioned at a first location to emit a first ultrasonic beam in a clockwise direction from the first location toward a portion of the pipe which is to be examined and toward the second transducer, and the second transducer is positioned at a second location to emit a second ultrasonic beam in a counter-clockwise direction from the second location toward the portion of the pipe which is to be examined and toward the first transducer, and a means for operating each of the first and second transducers (10,12) in pulse echo-mode, wherein each of the first and second transducers (10, 12) has a dead zone associated therewith and the distance between the first and second transducers (10 12) is at least twice the distance of the dead zone, the first transducer provides inspection coverage for 180-degrees or more beyond the dead zone associated therewith and the second transducer provides inspection coverage for 180-degrees or more beyond the dead zone associated therewith, such that the 360-degree inspection coverage is provided by a combination of the first and second transducers (10, 12), wherein the dead zone is a region closely surrounding each of the first and second transducers (10, 12) where valid data essentially cannot be obtained, and a verification component structured to confirm a distance of propagation of the first and second ultrasonic beams for the first and second transducers, and a processing component structured to isolate a specific mode from a plurality of propagation modes generated simultaneously by each of the first and second ultrasonic beams.