Monday, September 3, 2012

Level 2 Corrosion Findings



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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