What areas of an aircraft are particularly susceptible to corrosion?

Battery compartments and bilge areas are particularly susceptible to corrosion due to their operating environment and the materials involved. Battery acid and moisture can accumulate in these areas, creating an environment that is highly conducive to corrosion. Batteries can leak acid, which is corrosive and can cause significant damage to surrounding components and structures. Bilge areas, typically found in seaplane or amphibious aircraft, can also trap water and debris, leading to corrosion if not properly maintained.

In contrast, while wings and ailerons can indeed be affected by corrosion, especially if they are exposed to moisture and saltwater, they are generally designed with considerations to mitigate such risks through protective coatings. Engine compartments can experience high temperatures and may feature materials resistant to corrosion; however, the presence of oil and fuel can lead to localized corrosion issues over time. Cabin interiors generally do not face the same corrosion risks as they are typically maintained in a controlled environment free from significant moisture or corrosive substances.