11. The contractor has the legal obligation to mend structural defects as required in the contract. 12. The new exam can spot a structural defect that often precedes complete failure of the valve. 13. The microstructure includes most grains, secondary phases, grain boundaries, pores, micro-cracks, structural defects and hardness microindentions. 14. They range from floor squeaks and roof leaks to cracks in the foundation and structural defects . 15. When inspecting wooden siding, first look for structural defects like warps, cracks or splits in the boards. 16. Structural defects include cracking in many spots.17. Any time you have a structural defect relative to the locomotive itself, it is a safety problem. 18. Wanes are more like surface blemishes rather that structural defects so they are generally not a problem. 19. The new party had serious structural defects . 20. At the most basic level, their duties include valuing property and looking for structural defects in buildings.