FAA Advisory Circular 43.13-1B
Acceptable Methods, Techniques, and Practices
Aircraft Inspection and Repair
AC 43.13-1B | 6. Corrosion, Inspection, and Protection | 1. General | 6-2. Factors Influencing Corrosion
AC 43.13-1B CHG 1
9/27/01
are less resistant and also at boundaries be
tween regions, resulting in the formation of
pits and intergranular corrosion. Metals have a
wide range of corrosion resistance. The most
active metals, (those which lose electrons eas
ily), such as magnesium and aluminum, cor
rode easily. The most noble metals (those
which do not lose electrons easily), such as
gold and silver, do not corrode easily.
FIGURE 6-1. Simplified corrosion cell showing conditions which must exist for electrochemical corrosion.
FIGURE 6-2. Elimination of corrosion by application of an organic film to metal surface.
Page 6-2
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