A system for in-situ 3-axis scanning and detecting defects in an object, comprising: - a scanning system comprising: - a probe assembly having at least one non-destructive sensing probe to generate and measure eddy current on the surface of the object under test and at least one sensing unit to measure distance between a probe tip of said sensing probe and the surface of the object under test; and - a 3D scanner assembly having a XYZ gantry system arranged with a plurality of transmission elements (64a, 64b, 64c, 64d) that is associated with the probe assembly for movement of the probe assembly along X-axis, Y-axis and Z-axis such that the probe is moved over the entire surface area of the object under test for 3D scanning of the object under test; - an operator console which is operatively connected to the scanning system for controlling 3-dimensional movement of the probe assembly along X-axis, Y-axis and Z-axis through the XYZ gantry system, further comprising: - a test system having an actuator and a cross-head assembly that are actuated by a plurality of hydraulic units for applying a desired load and displacement on the object under test for providing static and cyclic test conditions; - a fixture assembly having a plurality of fixture elements and a plurality of gripping elements which are attached between the actuator and the cross-head assembly for holding the object under test while applying desired loads on the object under test by the test system; wherein the scanning system is integrated with the test system through a pair of supporting columns, in that the transmission elements (64a, 64b, 64c, 64d) are attached to a supporting frame which is secured to the supporting columns and in that the cross-head assembly of the test system is supported with the help of said pair of supporting columns; and wherein the operator console is secured with a holder assembly mounted on the test system, the operator console also being configured to control movement of the actuator and the cross-head assembly through the hydraulic units during and after loading the object under test at different load conditions and different intervals, and to synchronize the 3D scanning and testing of the object under test to establish correlation between the growth of defects and physical behavior of the object under test. - a scanning system comprising: - a probe assembly having at least one non-destructive sensing probe to generate and measure eddy current on the surface of the object under test and at least one sensing unit to measure distance between a probe tip of said sensing probe and the surface of the object under test; and - a 3D scanner assembly having a XYZ gantry system arranged with a plurality of transmission elements (64a, 64b, 64c, 64d) that is associated with the probe assembly for movement of the probe assembly along X-axis, Y-axis and Z-axis such that the probe is moved over the entire surface area of the object under test for 3D scanning of the object under test; - an operator console which is operatively connected to the scanning system for controlling 3-dimensional movement of the probe assembly along X-axis, Y-axis and Z-axis through the XYZ gantry system, - a probe assembly having at least one non-destructive sensing probe to generate and measure eddy current on the surface of the object under test and at least one sensing unit to measure distance between a probe tip of said sensing probe and the surface of the object under test; and - a 3D scanner assembly having a XYZ gantry system arranged with a plurality of transmission elements (64a, 64b, 64c, 64d) that is associated with the probe assembly for movement of the probe assembly along X-axis, Y-axis and Z-axis such that the probe is moved over the entire surface area of the object under test for 3D scanning of the object under test; - an operator console which is operatively connected to the scanning system for controlling 3-dimensional movement of the probe assembly along X-axis, Y-axis and Z-axis through the XYZ gantry system, - a test system having an actuator and a cross-head assembly that are actuated by a plurality of hydraulic units for applying a desired load and displacement on the object under test for providing static and cyclic test conditions; - a fixture assembly having a plurality of fixture elements and a plurality of gripping elements which are attached between the actuator and the cross-head assembly for holding the object under test while applying desired loads on the object under test by the test system; wherein the scanning system is integrated with the test system through a pair of supporting columns, in that the transmission elements (64a, 64b, 64c, 64d) are attached to a supporting frame which is secured to the supporting columns and in that the cross-head assembly of the test system is supported with the help of said pair of supporting columns; and wherein the operator console is secured with a holder assembly mounted on the test system, the operator console also being configured to control movement of the actuator and the cross-head assembly through the hydraulic units during and after loading the object under test at different load conditions and different intervals, and to synchronize the 3D scanning and testing of the object under test to establish correlation between the growth of defects and physical behavior of the object under test.