205.161
Figure 4-19.—Corrosion on control box electrical connectors.
205.162
Figure 4-20.—Corrosion on coaxial connector.
Light Assemblies. External formation lights, wing
tip lights, rotating beacons, and lower fuselage
anticollision lights are highly prone to corrosion.
These lights are prone to corrosion because of poor
seals, exposure to the elements in flight, or water
intrusion during aircraft washdown. Usually,
corrosion is heavy at the bases of the bulbs because of
dissimilar metal contact between bulbs and sockets.
Seals and preservation actions reduce the likelihood of
corrosion in light assemblies.
Q55. The corrosion-prone areas for each specific
aircraft are derailed in what publication?
Q56.
What are the three requirements for a corrosion
cell to form?
Ejection Seats
Aboard ship, salt spray enters most aircraft cockpit
areas when the canopies are opened for respotting of
aircraft maintenance or to accommodate the manning
of ready alert aircraft. While the cockpit and ejection
seats are not as corrosion prone as some other areas,
they are still in a corrosive environment. Therefore,
the cockpit and ejection seats require constant
attention, along with other parts of the aircraft.
Because of their construction and location,
ejection seats are difficult to inspect and clean
thoroughly while they are installed in the aircraft.
Also, there is a lengthy period of time between aircraft
inspections that require seat removal. Therefore,
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