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13 Cards in this Set
- Front
- Back
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Where is Dissimilar metal corrosion most likely to occur in an aircraft? |
Anywhere different types of metal come in contact with each other, especially where moisture present. |
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Where is Stress corrosion most likely to occur on am aircraft ? |
In any metal component that is continually under a tensile stress. The metal around holes in castings fitted with pressed-in bushing is susceptible to stress corrosion. |
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Identify the areas of an aircraft that are most PRONE to corrosion? |
Battery compartment, exhaust system, and exhaust trails, wheel well, lower areas of belly(bilge), piano King's, areas dissimilar metal contact, welded areas, inside of fuel tanks( especially integral tanks), metal fittings under high stress, lavatories, and food service areas. |
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What must be done to remove a piece of aluminum alloy to remove surface corrosion and to treat the metal to prevent further corrosion? |
Remove the corrosion residue with a bristle brush or a nylon scrubber. Neutralize the surface with chronic acid or with some type of conversion coating. Protect the surface from further corrosion with a coat of paint. |
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What is used to keep corrosion from forming on structural aluminum alloy? |
An oxide coating or aluminum cladding |
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How may rust be removed from a highly stressed metal part? |
By glass bead blasting, by careful polishing with mild abrasive paper, or by using fine buffing compound on a cloth buffing wheel. |
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How should an A&P minimize corrosion at piano hinges? |
They should be kept as clean and dry as practicable and lubricated with a low-viscosity moisture dispersing agent. |
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What tools are proper for removing corrosion from aluminum alloy? |
Aluminum wool or aluminum wire brushes. Severe corrosion can be removed with a rotary file. |
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What can be used to repair the anodized surface of an aluminum alloy part? |
A chemical conversion coating such as Alodine. |
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What type of device is used to remove surface corrosion from a piece of magnesium alloy? |
A stiff hog-bristle brush. |
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How is the inside of structural steel tubing protected from corrosion? |
The tubing is filled with hot linseed oil and then drained. |
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How is rust removed from a highly stressed metal part? |
By glass bead blasting, by careful polishing with mild abrasive paper, or by using fine buffing compound on a cloth buffing wheel |
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What is used to keep corrosion from forming on structural aluminum alloy? |
An oxide coating or aluminum cladding |
