When investigation for structural damage what areas should be included in the investigation?

• A. Fragment holes
• B. Ruptured pipes
• C. Warp frames
• D. Cracks

Answer: (D)

Cracks provide the clearest evidence that a structure has lost some of its ability to carry load. In a structural damage investigation you focus on identifying and sizing cracks wherever load is transmitted—hull plating, frames, bulkheads, stiffeners, and weld seams. Documenting crack size, orientation, and whether it’s propagating helps determine remaining strength and what temporary measures or repairs are needed. While other damage like holes or bent/deformed elements can occur, cracks uniquely indicate compromised structural integrity and guide the assessment and response.