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| Damage Assessment While inspecting damage, remember that all damage is not obvious or limited to an immediate location. For example, skin damage made by shells or shell fragments may be accompanied by damage to longerons, struts, cables, and so on. A hard landing can overload one of the landing gears. While inspecting a sprung shock strut, see if the damage extends to supporting structural members. When a shock occurs at one end of a member it is transmitted the entire length of that member. Therefore, all rivets, bolts, and attaching structures must be inspected for possible damage. Make a thorough inspection for rivets that have partially failed and for holes that have been distorted. Damage assessment includes looking for weathering or corrosion. Damage to aluminum by corrosion is detected by a white crystalline deposit that can be seen around loose rivets, scratches, bad dents, or some portion of the structure where moisture can collect. If a visual inspection of inside skin surfaces cannot be made without disassembly, rap your knuckles on the outside skin at various places. Severe corrosion exists if the light rapping causes dents or a white dust to appear.
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| Curriculum design: David L. Heiserman Publisher: SweetHaven Publishing Services |
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