We provided support for the start-up of fluorescence penetrant testing (PT, Method-D) by utilizing our expertise in the start-up of nondestructive testing, which we have cultivated through the manufacture of aerospace components. By providing support to small and medium-sized companies aiming to enter the aerospace industry, we contributed to the establishment of non-destructive testing, which is a major issue in Japan’s aerospace industry, and to the training of non-destructive inspectors.