X-ray examination to evaluate the structural integrity of connections (a, b), components (b) and the internal condition (c). (a) Bolt connection of knee to the hull structure on upper gun deck (beam 5). (b) Integrity of structural components from upper gun deck, porthole 6. (c) Plank with internal fracture from stern, portside, 3rd gangway. The images were enhanced in Photoshop®.