One word can strike terror in the heart of any DOM and Chief Pilot, especially during a large maintenance event: CORROSION. But that is the purpose of these events, finding and correcting any structural deficiencies.
Many airplanes operate in corrosive environments, but that does not always lead to a significant amount of corrosion found during inspections. The years of care leading up to that large maintenance event can be the predictor of the amount of corrosion found.
The key to controlling corrosion can be found in controlling water. There are several ways this is done.
Protection of the Aluminum Structure
Keep on a good coat of grease
Finding corrosion during a major inspection is inevitable, but it doesn’t have to be detrimental. Taking the preventive steps now to control water, will lessen the likelihood of major structural damage in the future.
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