Moisture Maintenance: Do You Have the Right Corrosion Prevention Plan?

Here are some tips for taking care of aircraft in a harsh environment.

Richard Scarbrough

Monday, September 08, 2025 at 08:00 AM ET

Verified

Edited By:

Travis Tingle

Tropic Ocean Airways is experienced in combating water and moisture. [Courtesy: Tropic Ocean Airways]

Key Takeaways:

Corrosion is a constant and deceptive threat to aircraft, especially in saltwater and high-humidity environments, requiring continuous diligence and proactive defense.
Effective prevention involves a multi-faceted approach, including frequent and thorough cleaning, strategic application of various protective coatings and compounds (e.g., ACF-50, Alodine, LanoCote), and enhanced maintenance inspections that often exceed OEM guidelines.
Leading aviation companies implement operational adaptations like the "one-hour rule" for engine runs to prevent moisture buildup, meticulous engine storage, and rigorous employee training focused on cleanliness and proper corrosion control techniques.

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The sea is calm, its gentle waves brushing the sugar-sand shoreline. In the distance, the rhythm of a steel drum echoes a familiar tune—“every little thing is going to be alright.” But appearances can be deceiving. Beneath the tranquil waters, a silent killer waits. Patient and methodical, it poses a constant threat to everything it touches.

Unlike a James Patterson thriller novel, one cannot see this killer until it is too late. Corrosion is indiscriminate in its attack—and none are exempt. For aircraft operators, constant diligence and proactive defense are essential.