A. All Level 2 corrosion
that is more than the rework limits of the approved repair procedures must be reported
to Cessna Aircraft Company. Cessna Aircraft Company engineering will do an
analysis to make sure the corrosion is not an urgent airworthiness concern.
B. When doing the
analysis, Cessna Aircraft Company will consider:
(1) Can the cause of the
corrosion be identified, such as a chemical spill or protective finish breakdown?
(2) Has the same level
of corrosion been found on other airplanes?
(3) Are the corrosion
protection procedures applied during manufacture the same for earlier and later
models?
(4) Age of the corroded
airplane compared to others checked.
(5) Is the maintenance
history different from the other airplanes in the fleet?
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