Nondestructive inspection apparatus

a, b a, b a, b a, b A nondestructive inspection apparatus is designed to inspect components in a small gap of a structure. A main body of the nondestructive inspection apparatus is positioned on a spray line header connected to a thermal sleeve within a cooling water inlet nozzle , and fixed to a core spray line by vertically clamping the core spray line with fixing units at the position where the thermal sleeve to be inspected is located. Scanners insert a tape probe having an inspection head inside an annular gap formed between the thermal sleeve and the cooling water inlet nozzle in an axial direction. The scanners are guided by guide rails to move the tape prove so that the inspection head can move in the circumferential direction of the annular gap