A system for internally inspecting a tubular composite part to identify adhesive and determine the depth, the length and the width of the adhesive therewithin, the system comprising: an endpoint adapter configured to fit within and to maintain a consistent cross-sectional position within the tubular composite part; a plurality of optical fibers extending radially outward from the endpoint adapter; wherein said endpoint adapter is configured to be moved longitudinally through the tubular composite part so as to receive light with the plurality of optical fibers following interaction of the light with the tubular composite part at each of a plurality of determinable longitudinal positions y within the tubular composite part; wherein the plurality of optical fibers extend in a consistent relative position with respect to the internal surface of the tubular composite part; wherein the plurality of optical fibers extending radially outward from the endpoint adapter have an increased density proximate regions of the tubular composite part having a relatively higher susceptibility to accumulation of adhesive than other regions of the tubular composite part; a near infrared imaging spectrometer configured to disperse the light being collected by each of the plurality of optical fibers across an NIR spectrum λ; a NIR camera configured to generate images of the tubular composite part based on light being collected by each of the plurality of optical fibers following dispersal across the NIR spectrum λ; and wherein the endpoint adapter comprises one or more frames with a respective frame comprising three or more contact members for riding along an internal surface while in contact with the internal surface of the tubular composite part as the endpoint adapter is advanced longitudinally therethrough. an endpoint adapter configured to fit within and to maintain a consistent cross-sectional position within the tubular composite part; a plurality of optical fibers extending radially outward from the endpoint adapter; wherein said endpoint adapter is configured to be moved longitudinally through the tubular composite part so as to receive light with the plurality of optical fibers following interaction of the light with the tubular composite part at each of a plurality of determinable longitudinal positions y within the tubular composite part; wherein the plurality of optical fibers extend in a consistent relative position with respect to the internal surface of the tubular composite part; wherein the plurality of optical fibers extending radially outward from the endpoint adapter have an increased density proximate regions of the tubular composite part having a relatively higher susceptibility to accumulation of adhesive than other regions of the tubular composite part; a near infrared imaging spectrometer configured to disperse the light being collected by each of the plurality of optical fibers across an NIR spectrum λ; a NIR camera configured to generate images of the tubular composite part based on light being collected by each of the plurality of optical fibers following dispersal across the NIR spectrum λ; and wherein the endpoint adapter comprises one or more frames with a respective frame comprising three or more contact members for riding along an internal surface while in contact with the internal surface of the tubular composite part as the endpoint adapter is advanced longitudinally therethrough.